2102012212040 has 64 divisors (see below), whose sum is σ = 5106992814000. Its totient is φ = 774046743552.

The previous prime is 2102012212039. The next prime is 2102012212057. The reversal of 2102012212040 is 402122102012.

It can be written as a sum of positive squares in 8 ways, for example, as 90556457476 + 2011455754564 = 300926^2 + 1418258^2 .

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, 5224715 + ... + 5612634.

Almost surely, 2^{2102012212040} is an apocalyptic number.

2102012212040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102012212040 is an abundant number, since it is smaller than the sum of its proper divisors (3004980601960).

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

2102012212040 is a wasteful number, since it uses less digits than its factorization.

2102012212040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10837746 (or 10837742 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2102012212040 its reverse (402122102012), we get a palindrome (2504134314052).

The spelling of 2102012212040 in words is "two trillion, one hundred two billion, twelve million, two hundred twelve thousand, forty".