2121121030202 has 16 divisors (see below), whose sum is σ = 3546146615040. Its totient is φ = 945639096768.

The previous prime is 2121121030153. The next prime is 2121121030211. The reversal of 2121121030202 is 2020301211212.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1641733898 + ... + 1641735189.

It is an arithmetic number, because the mean of its divisors is an integer number (221634163440).

Almost surely, 2^{2121121030202} is an apocalyptic number.

2121121030202 is a deficient number, since it is larger than the sum of its proper divisors (1425025584838).

2121121030202 is a wasteful number, since it uses less digits than its factorization.

2121121030202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283469125.

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

Adding to 2121121030202 its reverse (2020301211212), we get a palindrome (4141422241414).

The spelling of 2121121030202 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-one million, thirty thousand, two hundred two".