2212622640 has 60 divisors (see below), whose sum is σ = 7430726784. Its totient is φ = 590032512.

The previous prime is 2212622623. The next prime is 2212622689. The reversal of 2212622640 is 462262122.

It is a happy number.

2212622640 is a `hidden beast` number, since 2 + 2 + 12 + 6 + 2 + 2 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

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, 1535824 + ... + 1537263.

Almost surely, 2^2212622640 is an apocalyptic number.

2212622640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212622640 is an abundant number, since it is smaller than the sum of its proper divisors (5218104144).

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

2212622640 is a wasteful number, since it uses less digits than its factorization.

2212622640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073106 (or 3073097 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 2212622640 is about 47038.5229359936. The cubic root of 2212622640 is about 1303.0741134659.

Adding to 2212622640 its reverse (462262122), we get a palindrome (2674884762).

The spelling of 2212622640 in words is "two billion, two hundred twelve million, six hundred twenty-two thousand, six hundred forty".