221002202022 has 64 divisors (see below), whose sum is σ = 507565854720. Its totient is φ = 62841476736.

The previous prime is 221002202009. The next prime is 221002202053. The reversal of 221002202022 is 220202200122.

It is a junction number, because it is equal to n+sod(n) for n = 221002201992 and 221002202010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43441963 + ... + 43447049.

It is an arithmetic number, because the mean of its divisors is an integer number (7930716480).

Almost surely, 2^221002202022 is an apocalyptic number.

221002202022 is an abundant number, since it is smaller than the sum of its proper divisors (286563652698).

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

221002202022 is a wasteful number, since it uses less digits than its factorization.

221002202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9845.

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 221002202022 its reverse (220202200122), we get a palindrome (441204402144).

The spelling of 221002202022 in words is "two hundred twenty-one billion, two million, two hundred two thousand, twenty-two".