2122221100012 has 24 divisors (see below), whose sum is σ = 4050198017600. Its totient is φ = 967088094336.

The previous prime is 2122221100003. The next prime is 2122221100033. The reversal of 2122221100012 is 2100011222212.

It is a happy number.

It is a super-2 number, since 2×2122221100012² (a number of 25 digits) contains 22 as substring.

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, 258299337 + ... + 258307552.

Almost surely, 2^{2122221100012} is an apocalyptic number.

It is an amenable number.

2122221100012 is a deficient number, since it is larger than the sum of its proper divisors (1927976917588).

2122221100012 is a wasteful number, since it uses less digits than its factorization.

2122221100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516606985 (or 516606983 counting only the distinct ones).

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

Adding to 2122221100012 its reverse (2100011222212), we get a palindrome (4222232322224).

The spelling of 2122221100012 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred thousand, twelve".