22220112212001 has 16 divisors (see below), whose sum is σ = 35911292464320. Its totient is φ = 13466734673760.

The previous prime is 22220112211967. The next prime is 22220112212009. The reversal of 22220112212001 is 10021221102222.

It is a happy number.

22220112212001 is a `hidden beast` number, since 22 + 220 + 1 + 1 + 221 + 200 + 1 = 666.

It is not a de Polignac number, because 22220112212001 - 2³³ = 22211522277409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22220112212009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37407596020 + ... + 37407596613.

It is an arithmetic number, because the mean of its divisors is an integer number (2244455779020).

Almost surely, 2^{22220112212001} is an apocalyptic number.

It is an amenable number.

22220112212001 is a deficient number, since it is larger than the sum of its proper divisors (13691180252319).

22220112212001 is a wasteful number, since it uses less digits than its factorization.

22220112212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74815192653 (or 74815192647 counting only the distinct ones).

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

Adding to 22220112212001 its reverse (10021221102222), we get a palindrome (32241333314223).

The spelling of 22220112212001 in words is "twenty-two trillion, two hundred twenty billion, one hundred twelve million, two hundred twelve thousand, one".