221001102221110 has 16 divisors (see below), whose sum is σ = 407053192928976. Its totient is φ = 86344616681568.

The previous prime is 221001102221101. The next prime is 221001102221149. The reversal of 221001102221110 is 11122201100122.

It is a super-2 number, since 2×221001102221110² (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, 256978025409 + ... + 256978026268.

It is an arithmetic number, because the mean of its divisors is an integer number (25440824558061).

Almost surely, 2^{221001102221110} is an apocalyptic number.

221001102221110 is a deficient number, since it is larger than the sum of its proper divisors (186052090707866).

221001102221110 is a wasteful number, since it uses less digits than its factorization.

221001102221110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513956051727.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221001102221110 its reverse (11122201100122), we get a palindrome (232123303321232).

The spelling of 221001102221110 in words is "two hundred twenty-one trillion, one billion, one hundred two million, two hundred twenty-one thousand, one hundred ten".