221020002111110 has 32 divisors (see below), whose sum is σ = 398239978308480. Its totient is φ = 88318271577088.

The previous prime is 221020002111109. The next prime is 221020002111143. The reversal of 221020002111110 is 11111200020122.

It is a Curzon number.

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, 38624714 + ... + 43976226.

It is an arithmetic number, because the mean of its divisors is an integer number (12444999322140).

Almost surely, 2^{221020002111110} is an apocalyptic number.

221020002111110 is a deficient number, since it is larger than the sum of its proper divisors (177219976197370).

221020002111110 is a wasteful number, since it uses less digits than its factorization.

221020002111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5355712.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221020002111110 its reverse (11111200020122), we get a palindrome (232131202131232).

The spelling of 221020002111110 in words is "two hundred twenty-one trillion, twenty billion, two million, one hundred eleven thousand, one hundred ten".