221020110202000 has 80 divisors (see below), whose sum is σ = 540865501892352. Its totient is φ = 87342886857600.

The previous prime is 221020110201997. The next prime is 221020110202019. The reversal of 221020110202000 is 202011020122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×221020110202000² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665557224 + ... + 665889223.

Almost surely, 2^{221020110202000} is an apocalyptic number.

221020110202000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221020110202000 is an abundant number, since it is smaller than the sum of its proper divisors (319845391690352).

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

221020110202000 is a wasteful number, since it uses less digits than its factorization.

221020110202000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331446553 (or 1331446537 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221020110202000 its reverse (202011020122), we get a palindrome (221222121222122).

The spelling of 221020110202000 in words is "two hundred twenty-one trillion, twenty billion, one hundred ten million, two hundred two thousand".