21032212020331 has 16 divisors (see below), whose sum is σ = 21505803264000. Its totient is φ = 20559720834688.

The previous prime is 21032212020311. The next prime is 21032212020361. The reversal of 21032212020331 is 13302021223012.

It is a cyclic number.

It is not a de Polignac number, because 21032212020331 - 2⁷ = 21032212020203 is a prime.

It is a super-2 number, since 2×21032212020331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21032212020311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157302195 + ... + 157435843.

It is an arithmetic number, because the mean of its divisors is an integer number (1344112704000).

Almost surely, 2^{21032212020331} is an apocalyptic number.

21032212020331 is a deficient number, since it is larger than the sum of its proper divisors (473591243669).

21032212020331 is a wasteful number, since it uses less digits than its factorization.

21032212020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137738.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21032212020331 its reverse (13302021223012), we get a palindrome (34334233243343).

The spelling of 21032212020331 in words is "twenty-one trillion, thirty-two billion, two hundred twelve million, twenty thousand, three hundred thirty-one".