21222010022001 has 32 divisors (see below), whose sum is σ = 28708885728000. Its totient is φ = 13942699803648.

The previous prime is 21222010021939. The next prime is 21222010022023. The reversal of 21222010022001 is 10022001022212.

It is not a de Polignac number, because 21222010022001 - 2⁹ = 21222010021489 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21222010022041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100870845 + ... + 101081013.

It is an arithmetic number, because the mean of its divisors is an integer number (897152679000).

Almost surely, 2^{21222010022001} is an apocalyptic number.

It is an amenable number.

21222010022001 is a deficient number, since it is larger than the sum of its proper divisors (7486875705999).

21222010022001 is a wasteful number, since it uses less digits than its factorization.

21222010022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211513.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21222010022001 its reverse (10022001022212), we get a palindrome (31244011044213).

The spelling of 21222010022001 in words is "twenty-one trillion, two hundred twenty-two billion, ten million, twenty-two thousand, one".