10321222212021 has 32 divisors (see below), whose sum is σ = 16411901718528. Its totient is φ = 5641235550720.

The previous prime is 10321222212019. The next prime is 10321222212073. The reversal of 10321222212021 is 12021222212301.

It is not a de Polignac number, because 10321222212021 - 2¹ = 10321222212019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321222212221) 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, 15800976 + ... + 16441206.

It is an arithmetic number, because the mean of its divisors is an integer number (512871928704).

Almost surely, 2^{10321222212021} is an apocalyptic number.

It is an amenable number.

10321222212021 is a deficient number, since it is larger than the sum of its proper divisors (6090679506507).

10321222212021 is a wasteful number, since it uses less digits than its factorization.

10321222212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673641.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 10321222212021 its reverse (12021222212301), we get a palindrome (22342444424322).

The spelling of 10321222212021 in words is "ten trillion, three hundred twenty-one billion, two hundred twenty-two million, two hundred twelve thousand, twenty-one".