20201121121122 has 24 divisors (see below), whose sum is σ = 43772765976576. Its totient is φ = 6733142392056.

The previous prime is 20201121121091. The next prime is 20201121121183. The reversal of 20201121121122 is 22112112110202.

20201121121122 is a `hidden beast` number, since 20 + 201 + 1 + 211 + 211 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20201121121095 and 20201121121104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46833378 + ... + 47262749.

It is an arithmetic number, because the mean of its divisors is an integer number (1823865249024).

Almost surely, 2^{20201121121122} is an apocalyptic number.

20201121121122 is an abundant number, since it is smaller than the sum of its proper divisors (23571644855454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20201121121122 is a wasteful number, since it uses less digits than its factorization.

20201121121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94108062 (or 94108059 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 20201121121122 its reverse (22112112110202), we get a palindrome (42313233231324).

The spelling of 20201121121122 in words is "twenty trillion, two hundred one billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".