2100122040 has 32 divisors (see below), whose sum is σ = 6300366480. Its totient is φ = 560032512.

The previous prime is 2100122039. The next prime is 2100122069. The reversal of 2100122040 is 402210012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8750389 + ... + 8750628.

Almost surely, 2^2100122040 is an apocalyptic number.

2100122040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100122040 is an abundant number, since it is smaller than the sum of its proper divisors (4200244440).

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

2100122040 is a wasteful number, since it uses less digits than its factorization.

2100122040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17501031 (or 17501027 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2100122040 is about 45827.0884957794. The cubic root of 2100122040 is about 1280.6039711548.

Adding to 2100122040 its reverse (402210012), we get a palindrome (2502332052).

The spelling of 2100122040 in words is "two billion, one hundred million, one hundred twenty-two thousand, forty".