221021110001110 has 64 divisors (see below), whose sum is σ = 406877986944000. Its totient is φ = 86419897724160.

The previous prime is 221021110001057. The next prime is 221021110001143. The reversal of 221021110001110 is 11100011120122.

It is a happy number.

It is a super-2 number, since 2×221021110001110² (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, 2281883802 + ... + 2281980658.

It is an arithmetic number, because the mean of its divisors is an integer number (6357468546000).

Almost surely, 2^{221021110001110} is an apocalyptic number.

221021110001110 is a deficient number, since it is larger than the sum of its proper divisors (185856876942890).

221021110001110 is a wasteful number, since it uses less digits than its factorization.

221021110001110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123061.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 221021110001110 its reverse (11100011120122), we get a palindrome (232121121121232).

The spelling of 221021110001110 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred ten million, one thousand, one hundred ten".