20120211121022 has 4 divisors (see below), whose sum is σ = 30180316681536. Its totient is φ = 10060105560510.

The previous prime is 20120211121013. The next prime is 20120211121057. The reversal of 20120211121022 is 22012111202102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030052780254 + ... + 5030052780257.

It is an arithmetic number, because the mean of its divisors is an integer number (7545079170384).

Almost surely, 2^{20120211121022} is an apocalyptic number.

20120211121022 is a deficient number, since it is larger than the sum of its proper divisors (10060105560514).

20120211121022 is a wasteful number, since it uses less digits than its factorization.

20120211121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10060105560513.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20120211121022 its reverse (22012111202102), we get a palindrome (42132322323124).

The spelling of 20120211121022 in words is "twenty trillion, one hundred twenty billion, two hundred eleven million, one hundred twenty-one thousand, twenty-two".