121131232022130 has 256 divisors, whose sum is σ = 338237039001600. Its totient is φ = 27469344573440.

The previous prime is 121131232022093. The next prime is 121131232022131. The reversal of 121131232022130 is 31220232131121.

It is a self number, because there is not a number n which added to its sum of digits gives 121131232022130.

It is not an unprimeable number, because it can be changed into a prime (121131232022131) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 459693256 + ... + 459956684.

It is an arithmetic number, because the mean of its divisors is an integer number (1321238433600).

Almost surely, 2^{121131232022130} is an apocalyptic number.

121131232022130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121131232022130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169118519500800).

121131232022130 is an abundant number, since it is smaller than the sum of its proper divisors (217105806979470).

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

121131232022130 is a wasteful number, since it uses less digits than its factorization.

121131232022130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264809.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 121131232022130 its reverse (31220232131121), we get a palindrome (152351464153251).

The spelling of 121131232022130 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, two hundred thirty-two million, twenty-two thousand, one hundred thirty".