20010121101222 has 32 divisors (see below), whose sum is σ = 45740406796800. Its totient is φ = 5716804065408.

The previous prime is 20010121101199. The next prime is 20010121101239. The reversal of 20010121101222 is 22210112101002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14906947 + ... + 16193742.

It is an arithmetic number, because the mean of its divisors is an integer number (1429387712400).

Almost surely, 2^{20010121101222} is an apocalyptic number.

20010121101222 is an abundant number, since it is smaller than the sum of its proper divisors (25730285695578).

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

20010121101222 is a wasteful number, since it uses less digits than its factorization.

20010121101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31116020.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20010121101222 its reverse (22210112101002), we get a palindrome (42220233202224).

The spelling of 20010121101222 in words is "twenty trillion, ten billion, one hundred twenty-one million, one hundred one thousand, two hundred twenty-two".