2112122221010 has 32 divisors (see below), whose sum is σ = 3831997151232. Its totient is φ = 838143694080.

The previous prime is 2112122221007. The next prime is 2112122221019. The reversal of 2112122221010 is 101222212112.

It is a super-2 number, since 2×2112122221010² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112122221010.

It is not an unprimeable number, because it can be changed into a prime (2112122221019) 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, 24700730 + ... + 24786090.

It is an arithmetic number, because the mean of its divisors is an integer number (119749910976).

Almost surely, 2^{2112122221010} is an apocalyptic number.

2112122221010 is a deficient number, since it is larger than the sum of its proper divisors (1719874930222).

2112122221010 is a wasteful number, since it uses less digits than its factorization.

2112122221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104978.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2112122221010 its reverse (101222212112), we get a palindrome (2213344433122).

The spelling of 2112122221010 in words is "two trillion, one hundred twelve billion, one hundred twenty-two million, two hundred twenty-one thousand, ten".