12221220101004 has 72 divisors (see below), whose sum is σ = 31891641075840. Its totient is φ = 3942010195200.

The previous prime is 12221220100993. The next prime is 12221220101021. The reversal of 12221220101004 is 40010102212221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13559152 + ... + 14432360.

Almost surely, 2^{12221220101004} is an apocalyptic number.

It is an amenable number.

12221220101004 is an abundant number, since it is smaller than the sum of its proper divisors (19670420974836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221220101004 is a wasteful number, since it uses less digits than its factorization.

12221220101004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885791 (or 885786 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12221220101004 its reverse (40010102212221), we get a palindrome (52231322313225).

The spelling of 12221220101004 in words is "twelve trillion, two hundred twenty-one billion, two hundred twenty million, one hundred one thousand, four".