20121321012022 has 16 divisors (see below), whose sum is σ = 30884620813200. Its totient is φ = 9826458509952.

The previous prime is 20121321011989. The next prime is 20121321012031. The reversal of 20121321012022 is 22021012312102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 898354 + ... + 6407002.

It is an arithmetic number, because the mean of its divisors is an integer number (1930288800825).

Almost surely, 2^{20121321012022} is an apocalyptic number.

20121321012022 is a deficient number, since it is larger than the sum of its proper divisors (10763299801178).

20121321012022 is a wasteful number, since it uses less digits than its factorization.

20121321012022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551167.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20121321012022 its reverse (22021012312102), we get a palindrome (42142333324124).

The spelling of 20121321012022 in words is "twenty trillion, one hundred twenty-one billion, three hundred twenty-one million, twelve thousand, twenty-two".