221201022011000 has 64 divisors (see below), whose sum is σ = 517628879520480. Its totient is φ = 88477248460800.

The previous prime is 221201022010981. The next prime is 221201022011027. The reversal of 221201022011000 is 110220102122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24160619 + ... + 32033381.

Almost surely, 2^{221201022011000} is an apocalyptic number.

221201022011000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221201022011000 is an abundant number, since it is smaller than the sum of its proper divisors (296427857509480).

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

221201022011000 is a wasteful number, since it uses less digits than its factorization.

221201022011000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7900881 (or 7900867 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221201022011000 its reverse (110220102122), we get a palindrome (221311242113122).

The spelling of 221201022011000 in words is "two hundred twenty-one trillion, two hundred one billion, twenty-two million, eleven thousand".