222021202111128 has 96 divisors (see below), whose sum is σ = 695907324403200. Its totient is φ = 62631659173824.

The previous prime is 222021202111127. The next prime is 222021202111139. The reversal of 222021202111128 is 821111202120222.

It is a happy number.

222021202111128 is a `hidden beast` number, since 2 + 2 + 202 + 120 + 211 + 1 + 128 = 666.

It is a super-2 number, since 2×222021202111128² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222021202111127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2788050426 + ... + 2788130057.

It is an arithmetic number, because the mean of its divisors is an integer number (7249034629200).

Almost surely, 2^{222021202111128} is an apocalyptic number.

222021202111128 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

222021202111128 is an abundant number, since it is smaller than the sum of its proper divisors (473886122292072).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222021202111128 is a wasteful number, since it uses less digits than its factorization.

222021202111128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5576180581 (or 5576180574 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The spelling of 222021202111128 in words is "two hundred twenty-two trillion, twenty-one billion, two hundred two million, one hundred eleven thousand, one hundred twenty-eight".