2121642040332 has 12 divisors (see below), whose sum is σ = 4950498094136. Its totient is φ = 707214013440.

The previous prime is 2121642040313. The next prime is 2121642040351. The reversal of 2121642040332 is 2330402461212.

It is an interprime number because it is at equal distance from previous prime (2121642040313) and next prime (2121642040351).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×2121642040332³ (a number of 38 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2121642040332.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88401751669 + ... + 88401751692.

Almost surely, 2^{2121642040332} is an apocalyptic number.

It is an amenable number.

2121642040332 is an abundant number, since it is smaller than the sum of its proper divisors (2828856053804).

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

2121642040332 is a wasteful number, since it uses less digits than its factorization.

2121642040332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176803503368 (or 176803503366 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 2121642040332 in words is "two trillion, one hundred twenty-one billion, six hundred forty-two million, forty thousand, three hundred thirty-two".