2112212220100 has 36 divisors (see below), whose sum is σ = 4591879979344. Its totient is φ = 843340286880.

The previous prime is 2112212220059. The next prime is 2112212220113. The reversal of 2112212220100 is 10222122112.

It is a happy number.

It is a super-2 number, since 2×2112212220100² (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 11 ways as a sum of consecutive naturals, for example, 19252542 + ... + 19361941.

Almost surely, 2^{2112212220100} is an apocalyptic number.

2112212220100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112212220100 is an abundant number, since it is smaller than the sum of its proper divisors (2479667759244).

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

2112212220100 is a wasteful number, since it uses less digits than its factorization.

2112212220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38615044 (or 38615037 counting only the distinct ones).

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

Adding to 2112212220100 its reverse (10222122112), we get a palindrome (2122434342212).

It can be divided in two parts, 2112 and 212220100, that added together give a palindrome (212222212).

The spelling of 2112212220100 in words is "two trillion, one hundred twelve billion, two hundred twelve million, two hundred twenty thousand, one hundred".