221102022112 has 24 divisors (see below), whose sum is σ = 435542184000. Its totient is φ = 110488134144.

The previous prime is 221102022109. The next prime is 221102022137. The reversal of 221102022112 is 211220201122.

It is a happy number.

It is a super-2 number, since 2×221102022112² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1907737 + ... + 2020312.

It is an arithmetic number, because the mean of its divisors is an integer number (18147591000).

Almost surely, 2^221102022112 is an apocalyptic number.

It is an amenable number.

221102022112 is a deficient number, since it is larger than the sum of its proper divisors (214440161888).

221102022112 is a wasteful number, since it uses less digits than its factorization.

221102022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3929818 (or 3929810 counting only the distinct ones).

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

Adding to 221102022112 its reverse (211220201122), we get a palindrome (432322223234).

The spelling of 221102022112 in words is "two hundred twenty-one billion, one hundred two million, twenty-two thousand, one hundred twelve".