21222032320988 has 6 divisors (see below), whose sum is σ = 37138556561736. Its totient is φ = 10611016160492.

The previous prime is 21222032320981. The next prime is 21222032321003. The reversal of 21222032320988 is 88902323022212.

It is a super-2 number, since 2×21222032320988² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222032320981) by changing a digit.

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 as a sum of consecutive naturals, namely, 2652754040120 + ... + 2652754040127.

It is an arithmetic number, because the mean of its divisors is an integer number (6189759426956).

Almost surely, 2^{21222032320988} is an apocalyptic number.

It is an amenable number.

21222032320988 is a deficient number, since it is larger than the sum of its proper divisors (15916524240748).

21222032320988 is a wasteful number, since it uses less digits than its factorization.

21222032320988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305508080251 (or 5305508080249 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 21222032320988 in words is "twenty-one trillion, two hundred twenty-two billion, thirty-two million, three hundred twenty thousand, nine hundred eighty-eight".