221101112010 has 64 divisors (see below), whose sum is σ = 548962728192. Its totient is φ = 56948000256.

The previous prime is 221101111993. The next prime is 221101112041. The reversal of 221101112010 is 10211101122.

It is a Curzon 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, 574902 + ... + 879041.

It is an arithmetic number, because the mean of its divisors is an integer number (8577542628).

Almost surely, 2^221101112010 is an apocalyptic number.

221101112010 is an abundant number, since it is smaller than the sum of its proper divisors (327861616182).

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

221101112010 is a wasteful number, since it uses less digits than its factorization.

221101112010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454127.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 221101112010 its reverse (10211101122), we get a palindrome (231312213132).

The spelling of 221101112010 in words is "two hundred twenty-one billion, one hundred one million, one hundred twelve thousand, ten".