2121201032130 has 32 divisors (see below), whose sum is σ = 5656536086400. Its totient is φ = 565653608496.

The previous prime is 2121201032009. The next prime is 2121201032149. The reversal of 2121201032130 is 312301021212.

2121201032130 is a `hidden beast` number, since 212 + 120 + 10 + 321 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 3928149790 + ... + 3928150329.

It is an arithmetic number, because the mean of its divisors is an integer number (176766752700).

Almost surely, 2^{2121201032130} is an apocalyptic number.

2121201032130 is an abundant number, since it is smaller than the sum of its proper divisors (3535335054270).

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

2121201032130 is a wasteful number, since it uses less digits than its factorization.

2121201032130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7856300135 (or 7856300129 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2121201032130 its reverse (312301021212), we get a palindrome (2433502053342).

The spelling of 2121201032130 in words is "two trillion, one hundred twenty-one billion, two hundred one million, thirty-two thousand, one hundred thirty".