211012201121 has 24 divisors (see below), whose sum is σ = 222173280000. Its totient is φ = 200390265152.

The previous prime is 211012201109. The next prime is 211012201177. The reversal of 211012201121 is 121102210112.

It is a de Polignac number, because none of the positive numbers 2^k-211012201121 is a prime.

It is a super-2 number, since 2×211012201121² (a number of 23 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 = 211012201096 and 211012201105.

It is not an unprimeable number, because it can be changed into a prime (211012201321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45386405 + ... + 45391053.

It is an arithmetic number, because the mean of its divisors is an integer number (9257220000).

Almost surely, 2^211012201121 is an apocalyptic number.

It is an amenable number.

211012201121 is a deficient number, since it is larger than the sum of its proper divisors (11161078879).

211012201121 is a wasteful number, since it uses less digits than its factorization.

211012201121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5293 (or 5270 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211012201121 its reverse (121102210112), we get a palindrome (332114411233).

It can be divided in two parts, 21101 and 2201121, that added together give a palindrome (2222222).

The spelling of 211012201121 in words is "two hundred eleven billion, twelve million, two hundred one thousand, one hundred twenty-one".