2142104215120 has 40 divisors (see below), whose sum is σ = 4996615133664. Its totient is φ = 854050660992.

The previous prime is 2142104215099. The next prime is 2142104215127. The reversal of 2142104215120 is 215124012412.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2142104215120² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142104215127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43585054 + ... + 43634173.

Almost surely, 2^{2142104215120} is an apocalyptic number.

2142104215120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2142104215120 is an abundant number, since it is smaller than the sum of its proper divisors (2854510918544).

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

2142104215120 is a wasteful number, since it uses less digits than its factorization.

2142104215120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87219547 (or 87219541 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 2142104215120 its reverse (215124012412), we get a palindrome (2357228227532).

The spelling of 2142104215120 in words is "two trillion, one hundred forty-two billion, one hundred four million, two hundred fifteen thousand, one hundred twenty".