2222212112001 has 24 divisors (see below), whose sum is σ = 3671971864704. Its totient is φ = 1268603801280.

The previous prime is 2222212111991. The next prime is 2222212112017. The reversal of 2222212112001 is 1002112122222.

It is a happy number.

2222212112001 is a `hidden beast` number, since 222 + 221 + 21 + 1 + 200 + 1 = 666.

It is not a de Polignac number, because 2222212112001 - 2⁶ = 2222212111937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2222212117001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17041356 + ... + 17171261.

It is an arithmetic number, because the mean of its divisors is an integer number (152998827696).

Almost surely, 2^{2222212112001} is an apocalyptic number.

2222212112001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2222212112001 is a deficient number, since it is larger than the sum of its proper divisors (1449759752703).

2222212112001 is a wasteful number, since it uses less digits than its factorization.

2222212112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34213661 (or 34213658 counting only the distinct ones).

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

Adding to 2222212112001 its reverse (1002112122222), we get a palindrome (3224324234223).

The spelling of 2222212112001 in words is "two trillion, two hundred twenty-two billion, two hundred twelve million, one hundred twelve thousand, one".