221102121022 has 16 divisors (see below), whose sum is σ = 349117920000. Its totient is φ = 104729791320.

The previous prime is 221102120983. The next prime is 221102121073. The reversal of 221102121022 is 220121201122.

It is a happy number.

It is a super-2 number, since 2×221102121022² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221102120987 and 221102121005.

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, 2367147 + ... + 2458777.

It is an arithmetic number, because the mean of its divisors is an integer number (21819870000).

Almost surely, 2^221102121022 is an apocalyptic number.

221102121022 is a deficient number, since it is larger than the sum of its proper divisors (128015798978).

221102121022 is a wasteful number, since it uses less digits than its factorization.

221102121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155151.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221102121022 its reverse (220121201122), we get a palindrome (441223322144).

The spelling of 221102121022 in words is "two hundred twenty-one billion, one hundred two million, one hundred twenty-one thousand, twenty-two".