221110111121002 has 16 divisors (see below), whose sum is σ = 332538992335872. Its totient is φ = 110263793987520.

The previous prime is 221110111120993. The next prime is 221110111121027. The reversal of 221110111121002 is 200121111011122.

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, 29224177 + ... + 36003787.

It is an arithmetic number, because the mean of its divisors is an integer number (20783687020992).

Almost surely, 2^{221110111121002} is an apocalyptic number.

221110111121002 is a deficient number, since it is larger than the sum of its proper divisors (111428881214870).

221110111121002 is a wasteful number, since it uses less digits than its factorization.

221110111121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822573.

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

Adding to 221110111121002 its reverse (200121111011122), we get a palindrome (421231222132124).

The spelling of 221110111121002 in words is "two hundred twenty-one trillion, one hundred ten billion, one hundred eleven million, one hundred twenty-one thousand, two".