121202130 has 32 divisors (see below), whose sum is σ = 332440704. Its totient is φ = 27703296.

The previous prime is 121202101. The next prime is 121202131. The reversal of 121202130 is 31202121.

It is not an unprimeable number, because it can be changed into a prime (121202131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288367 + ... + 288786.

It is an arithmetic number, because the mean of its divisors is an integer number (10388772).

Almost surely, 2^121202130 is an apocalyptic number.

121202130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121202130 is an abundant number, since it is smaller than the sum of its proper divisors (211238574).

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

121202130 is a wasteful number, since it uses less digits than its factorization.

121202130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577170.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 121202130 is about 11009.1838934591. The cubic root of 121202130 is about 494.8840050623.

Adding to 121202130 its reverse (31202121), we get a palindrome (152404251).

Subtracting from 121202130 its reverse (31202121), we obtain a palindrome (90000009).

The spelling of 121202130 in words is "one hundred twenty-one million, two hundred two thousand, one hundred thirty".