2121201202130 has 48 divisors (see below), whose sum is σ = 3946284064512. Its totient is φ = 820905717600.

The previous prime is 2121201202121. The next prime is 2121201202147. The reversal of 2121201202130 is 312021021212.

It is a junction number, because it is equal to n+sod(n) for n = 2121201202099 and 2121201202108.

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, 41903135 + ... + 41953725.

It is an arithmetic number, because the mean of its divisors is an integer number (82214251344).

Almost surely, 2^{2121201202130} is an apocalyptic number.

2121201202130 is a deficient number, since it is larger than the sum of its proper divisors (1825082862382).

2121201202130 is a wasteful number, since it uses less digits than its factorization.

2121201202130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55023 (or 54992 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2121201202130 its reverse (312021021212), we get a palindrome (2433222223342).

The spelling of 2121201202130 in words is "two trillion, one hundred twenty-one billion, two hundred one million, two hundred two thousand, one hundred thirty".