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2212111023031 = 721319414457897
BaseRepresentation
bin100000001100001100000…
…101110111101110110111
321211110211211011020210001
4200030030011313232313
5242220400410214111
64412121344212131
7315551113311100
oct40141405675667
97743754136701
102212111023031
11783173003928
122b887b60a047
131307a7a1ac60
14790d120d3a7
153c81e8031c1
hex2030c177bb7

2212111023031 has 48 divisors (see below), whose sum is σ = 2988218187360. Its totient is φ = 1617681300480.

The previous prime is 2212111023029. The next prime is 2212111023061. The reversal of 2212111023031 is 1303201112122.

2212111023031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2212111023031 - 21 = 2212111023029 is a prime.

It is a super-2 number, since 2×22121110230312 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212111023061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1732726 + ... + 2725171.

It is an arithmetic number, because the mean of its divisors is an integer number (62254545570).

Almost surely, 22212111023031 is an apocalyptic number.

2212111023031 is a deficient number, since it is larger than the sum of its proper divisors (776107164329).

2212111023031 is a wasteful number, since it uses less digits than its factorization.

2212111023031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4457984 (or 4457977 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2212111023031 its reverse (1303201112122), we get a palindrome (3515312135153).

The spelling of 2212111023031 in words is "two trillion, two hundred twelve billion, one hundred eleven million, twenty-three thousand, thirty-one".

Divisors: 1 7 13 19 41 49 91 133 247 287 533 637 779 931 1729 2009 3731 5453 10127 12103 26117 38171 70889 496223 4457897 31205279 57952661 84700043 182773777 218436953 405668627 592900301 1101100559 1279416439 2376059101 2839680389 3472701763 4150302107 7707703913 8955915073 16632413707 24308912341 45145122919 53953927391 116426895949 170162386387 316015860433 2212111023031