2111212122 has 64 divisors (see below), whose sum is σ = 4492143360. Its totient is φ = 660441600.

The previous prime is 2111212097. The next prime is 2111212157. The reversal of 2111212122 is 2212121112.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 900672 + ... + 903012.

It is an arithmetic number, because the mean of its divisors is an integer number (70189740).

Almost surely, 2^2111212122 is an apocalyptic number.

2111212122 is an abundant number, since it is smaller than the sum of its proper divisors (2380931238).

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

2111212122 is a wasteful number, since it uses less digits than its factorization.

2111212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2519.

The product of its digits is 32, while the sum is 15.

The square root of 2111212122 is about 45947.9283754992. The cubic root of 2111212122 is about 1282.8541701267.

Adding to 2111212122 its reverse (2212121112), we get a palindrome (4323333234).

The spelling of 2111212122 in words is "two billion, one hundred eleven million, two hundred twelve thousand, one hundred twenty-two".