2130220452400 has 120 divisors (see below), whose sum is σ = 5245506547344. Its totient is φ = 830857420800.

The previous prime is 2130220452379. The next prime is 2130220452431. The reversal of 2130220452400 is 42540220312.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31240744 + ... + 31308856.

Almost surely, 2^{2130220452400} is an apocalyptic number.

2130220452400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2130220452400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2622753273672).

2130220452400 is an abundant number, since it is smaller than the sum of its proper divisors (3115286094944).

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

2130220452400 is a wasteful number, since it uses less digits than its factorization.

2130220452400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70079 (or 70068 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 2130220452400 its reverse (42540220312), we get a palindrome (2172760672712).

The spelling of 2130220452400 in words is "two trillion, one hundred thirty billion, two hundred twenty million, four hundred fifty-two thousand, four hundred".