221101020021110 has 64 divisors (see below), whose sum is σ = 402200176909824. Its totient is φ = 87504230016000.

The previous prime is 221101020021107. The next prime is 221101020021181. The reversal of 221101020021110 is 11120020101122.

It is a super-2 number, since 2×221101020021110² (a number of 29 digits) contains 22 as substring.

It is a congruent 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, 13066655450 + ... + 13066672370.

It is an arithmetic number, because the mean of its divisors is an integer number (6284377764216).

Almost surely, 2^{221101020021110} is an apocalyptic number.

221101020021110 is a deficient number, since it is larger than the sum of its proper divisors (181099156888714).

221101020021110 is a wasteful number, since it uses less digits than its factorization.

221101020021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25209.

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

Adding to 221101020021110 its reverse (11120020101122), we get a palindrome (232221040122232).

The spelling of 221101020021110 in words is "two hundred twenty-one trillion, one hundred one billion, twenty million, twenty-one thousand, one hundred ten".