221021112101110 has 16 divisors (see below), whose sum is σ = 398212966930032. Its totient is φ = 88325119252000.

The previous prime is 221021112101089. The next prime is 221021112101177. The reversal of 221021112101110 is 11101211120122.

It is a super-2 number, since 2×221021112101110² (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 7 ways as a sum of consecutive naturals, for example, 10415687416 + ... + 10415708635.

It is an arithmetic number, because the mean of its divisors is an integer number (24888310433127).

Almost surely, 2^{221021112101110} is an apocalyptic number.

221021112101110 is a deficient number, since it is larger than the sum of its proper divisors (177191854828922).

221021112101110 is a wasteful number, since it uses less digits than its factorization.

221021112101110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20831397119.

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

Adding to 221021112101110 its reverse (11101211120122), we get a palindrome (232122323221232).

The spelling of 221021112101110 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred twelve million, one hundred one thousand, one hundred ten".