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1072122157211 = 72941017128761
BaseRepresentation
bin11111001100111110111…
…01011101100010011011
310210111100000222121202212
433212133131131202123
5120031201233012321
62140305350345335
7140313120654650
oct17463735354233
93714300877685
101072122157211
1138375900a0a6
1215394b65b24b
137a14028b301
1439c68c35c27
151cd4d31955b
hexf99f75d89b

1072122157211 has 16 divisors (see below), whose sum is σ = 1267574331840. Its totient is φ = 887244986880.

The previous prime is 1072122157111. The next prime is 1072122157231. The reversal of 1072122157211 is 1127512212701.

It is not a de Polignac number, because 1072122157211 - 214 = 1072122140827 is a prime.

It is a super-2 number, since 2×10721221572112 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1072122157231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8262071 + ... + 8390831.

It is an arithmetic number, because the mean of its divisors is an integer number (79223395740).

Almost surely, 21072122157211 is an apocalyptic number.

1072122157211 is a deficient number, since it is larger than the sum of its proper divisors (195452174629).

1072122157211 is a wasteful number, since it uses less digits than its factorization.

1072122157211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169814.

The product of its (nonzero) digits is 3920, while the sum is 32.

Adding to 1072122157211 its reverse (1127512212701), we get a palindrome (2199634369912).

The spelling of 1072122157211 in words is "one trillion, seventy-two billion, one hundred twenty-two million, one hundred fifty-seven thousand, two hundred eleven".

Divisors: 1 7 29 203 41017 128761 287119 901327 1189493 3734069 8326451 26138483 5281389937 36969729559 153160308173 1072122157211