221102020038 has 16 divisors (see below), whose sum is σ = 461430302976. Its totient is φ = 70496296200.

The previous prime is 221102020003. The next prime is 221102020039. The reversal of 221102020038 is 830020201122.

It is a happy number.

It is a super-2 number, since 2×221102020038² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221102019996 and 221102020023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221102020039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801094138 + ... + 801094413.

It is an arithmetic number, because the mean of its divisors is an integer number (28839393936).

Almost surely, 2^221102020038 is an apocalyptic number.

221102020038 is an abundant number, since it is smaller than the sum of its proper divisors (240328282938).

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

221102020038 is a wasteful number, since it uses less digits than its factorization.

221102020038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602188579.

The product of its (nonzero) digits is 384, while the sum is 21.

The spelling of 221102020038 in words is "two hundred twenty-one billion, one hundred two million, twenty thousand, thirty-eight".