211012201121121 has 48 divisors (see below), whose sum is σ = 316084204275840. Its totient is φ = 135538800042240.

The previous prime is 211012201121063. The next prime is 211012201121123. The reversal of 211012201121121 is 121121102210112.

It is a happy number.

211012201121121 is a `hidden beast` number, since 211 + 0 + 1 + 220 + 1 + 1 + 211 + 21 = 666.

It is not a de Polignac number, because 211012201121121 - 2¹³ = 211012201112929 is a prime.

It is a super-2 number, since 2×211012201121121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211012201121094 and 211012201121103.

It is not an unprimeable number, because it can be changed into a prime (211012201121123) 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, 1045709925 + ... + 1045911693.

It is an arithmetic number, because the mean of its divisors is an integer number (6585087589080).

Almost surely, 2^{211012201121121} is an apocalyptic number.

It is an amenable number.

211012201121121 is a deficient number, since it is larger than the sum of its proper divisors (105072003154719).

211012201121121 is a wasteful number, since it uses less digits than its factorization.

211012201121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232406 (or 232403 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 211012201121121 its reverse (121121102210112), we get a palindrome (332133303331233).

The spelling of 211012201121121 in words is "two hundred eleven trillion, twelve billion, two hundred one million, one hundred twenty-one thousand, one hundred twenty-one".