221111200022022 has 24 divisors (see below), whose sum is σ = 507255105933576. Its totient is φ = 69368219614656.

The previous prime is 221111200022017. The next prime is 221111200022101. The reversal of 221111200022022 is 220220002111122.

It is a happy number.

221111200022022 is a `hidden beast` number, since 2 + 211 + 11 + 200 + 0 + 220 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 221111200021986 and 221111200022004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 361292810188 + ... + 361292810799.

It is an arithmetic number, because the mean of its divisors is an integer number (21135629413899).

Almost surely, 2^{221111200022022} is an apocalyptic number.

221111200022022 is an abundant number, since it is smaller than the sum of its proper divisors (286143905911554).

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

221111200022022 is a wasteful number, since it uses less digits than its factorization.

221111200022022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722585621012 (or 722585621009 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221111200022022 its reverse (220220002111122), we get a palindrome (441331202133144).

The spelling of 221111200022022 in words is "two hundred twenty-one trillion, one hundred eleven billion, two hundred million, twenty-two thousand, twenty-two".