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2001000211211 = 61268911219861
BaseRepresentation
bin11101000111100100111…
…010000010001100001011
321002021221010220211210202
4131013210322002030023
5230241022023224321
64131125151002415
7264365436105521
oct35074472021413
97067833824722
102001000211211
1170168a4a9321
12283982b0940b
13116902846721
146cbc5654311
15370b5c0170b
hex1d1e4e8230b

2001000211211 has 8 divisors (see below), whose sum is σ = 2033880792048. Its totient is φ = 1968122124000.

The previous prime is 2001000211139. The next prime is 2001000211237. The reversal of 2001000211211 is 1121120001002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001000211211 - 214 = 2001000194827 is a prime.

It is a super-2 number, since 2×20010002112112 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001000211192 and 2001000211201.

It is not an unprimeable number, because it can be changed into a prime (2001000211291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1030421 + ... + 2250281.

It is an arithmetic number, because the mean of its divisors is an integer number (254235099006).

Almost surely, 22001000211211 is an apocalyptic number.

2001000211211 is a deficient number, since it is larger than the sum of its proper divisors (32880580837).

2001000211211 is a wasteful number, since it uses less digits than its factorization.

2001000211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246813.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2001000211211 its reverse (1121120001002), we get a palindrome (3122120212213).

The spelling of 2001000211211 in words is "two trillion, one billion, two hundred eleven thousand, two hundred eleven".

Divisors: 1 61 26891 1219861 1640351 74411521 32803282151 2001000211211