21021011122022 has 16 divisors (see below), whose sum is σ = 32348573065872. Its totient is φ = 10238915258880.

The previous prime is 21021011121991. The next prime is 21021011122057. The reversal of 21021011122022 is 22022111012012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190400828 + ... + 190511199.

It is an arithmetic number, because the mean of its divisors is an integer number (2021785816617).

Almost surely, 2^{21021011122022} is an apocalyptic number.

21021011122022 is a deficient number, since it is larger than the sum of its proper divisors (11327561943850).

21021011122022 is a wasteful number, since it uses less digits than its factorization.

21021011122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380912743.

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

Adding to 21021011122022 its reverse (22022111012012), we get a palindrome (43043122134034).

The spelling of 21021011122022 in words is "twenty-one trillion, twenty-one billion, eleven million, one hundred twenty-two thousand, twenty-two".