221131022002 has 64 divisors (see below), whose sum is σ = 371463874560. Its totient is φ = 97874795200.

The previous prime is 221131021931. The next prime is 221131022069. The reversal of 221131022002 is 200220131122.

It is a happy 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, 190137873 + ... + 190139035.

It is an arithmetic number, because the mean of its divisors is an integer number (5804123040).

Almost surely, 2^221131022002 is an apocalyptic number.

221131022002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221131022002 is a deficient number, since it is larger than the sum of its proper divisors (150332852558).

221131022002 is a wasteful number, since it uses less digits than its factorization.

221131022002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 221131022002 its reverse (200220131122), we get a palindrome (421351153124).

The spelling of 221131022002 in words is "two hundred twenty-one billion, one hundred thirty-one million, twenty-two thousand, two".