2121550124 has 6 divisors (see below), whose sum is σ = 3712712724. Its totient is φ = 1060775060.

The previous prime is 2121550117. The next prime is 2121550133. The reversal of 2121550124 is 4210551212.

It is a self number, because there is not a number n which added to its sum of digits gives 2121550124.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265193762 + ... + 265193769.

It is an arithmetic number, because the mean of its divisors is an integer number (618785454).

Almost surely, 2^2121550124 is an apocalyptic number.

It is an amenable number.

2121550124 is a deficient number, since it is larger than the sum of its proper divisors (1591162600).

2121550124 is a wasteful number, since it uses less digits than its factorization.

2121550124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530387535 (or 530387533 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2121550124 is about 46060.2879278886. The cubic root of 2121550124 is about 1284.9446849470.

The spelling of 2121550124 in words is "two billion, one hundred twenty-one million, five hundred fifty thousand, one hundred twenty-four".