2130312232220 has 48 divisors (see below), whose sum is σ = 4481144726016. Its totient is φ = 850699584000.

The previous prime is 2130312232183. The next prime is 2130312232277. The reversal of 2130312232220 is 222322130312.

It is a super-2 number, since 2×2130312232220² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 30002360 + ... + 30073280.

It is an arithmetic number, because the mean of its divisors is an integer number (93357181792).

Almost surely, 2^{2130312232220} is an apocalyptic number.

2130312232220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130312232220 is an abundant number, since it is smaller than the sum of its proper divisors (2350832493796).

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

2130312232220 is a wasteful number, since it uses less digits than its factorization.

2130312232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73422 (or 73420 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2130312232220 its reverse (222322130312), we get a palindrome (2352634362532).

The spelling of 2130312232220 in words is "two trillion, one hundred thirty billion, three hundred twelve million, two hundred thirty-two thousand, two hundred twenty".