221020033102 has 64 divisors (see below), whose sum is σ = 371157811200. Its totient is φ = 97869638880.

The previous prime is 221020033057. The next prime is 221020033103. The reversal of 221020033102 is 201330020122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221020033103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48906799 + ... + 48911317.

It is an arithmetic number, because the mean of its divisors is an integer number (5799340800).

Almost surely, 2^221020033102 is an apocalyptic number.

221020033102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221020033102 is a deficient number, since it is larger than the sum of its proper divisors (150137778098).

221020033102 is a wasteful number, since it uses less digits than its factorization.

221020033102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4981.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 221020033102 its reverse (201330020122), we get a palindrome (422350053224).

The spelling of 221020033102 in words is "two hundred twenty-one billion, twenty million, thirty-three thousand, one hundred two".