2212542906 has 32 divisors (see below), whose sum is σ = 5059283328. Its totient is φ = 631899840.

The previous prime is 2212542883. The next prime is 2212542947. The reversal of 2212542906 is 6092452122.

2212542906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2212542906² = 9790692221781849672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110956 + ... + 129368.

It is an arithmetic number, because the mean of its divisors is an integer number (158102604).

Almost surely, 2^2212542906 is an apocalyptic number.

2212542906 is an abundant number, since it is smaller than the sum of its proper divisors (2846740422).

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

2212542906 is a wasteful number, since it uses less digits than its factorization.

2212542906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21286.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 2212542906 is about 47037.6753889900. The cubic root of 2212542906 is about 1303.0584607652.

The spelling of 2212542906 in words is "two billion, two hundred twelve million, five hundred forty-two thousand, nine hundred six".