121129002 has 12 divisors (see below), whose sum is σ = 262446210. Its totient is φ = 40376328.

The previous prime is 121128991. The next prime is 121129007. The reversal of 121129002 is 200921121.

It can be written as a sum of positive squares in only one way, i.e., 120758121 + 370881 = 10989^2 + 609^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 6729389 = 121129002 / (1 + 2 + 1 + 1 + 2 + 9 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (121129007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3364677 + ... + 3364712.

Almost surely, 2^121129002 is an apocalyptic number.

121129002 is an abundant number, since it is smaller than the sum of its proper divisors (141317208).

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

121129002 is a wasteful number, since it uses less digits than its factorization.

121129002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6729397 (or 6729394 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 121129002 is about 11005.8621652281. The cubic root of 121129002 is about 494.7844546709.

The spelling of 121129002 in words is "one hundred twenty-one million, one hundred twenty-nine thousand, two".