121129026 has 16 divisors (see below), whose sum is σ = 242487264. Its totient is φ = 40338144.

The previous prime is 121129013. The next prime is 121129037. The reversal of 121129026 is 620921121.

It is a junction number, because it is equal to n+sod(n) for n = 121128987 and 121129005.

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, 2251 + ... + 15726.

It is an arithmetic number, because the mean of its divisors is an integer number (15155454).

Almost surely, 2^121129026 is an apocalyptic number.

121129026 is an abundant number, since it is smaller than the sum of its proper divisors (121358238).

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

121129026 is a wasteful number, since it uses less digits than its factorization.

121129026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19105.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 121129026 is about 11005.8632555561. The cubic root of 121129026 is about 494.7844873491.

The spelling of 121129026 in words is "one hundred twenty-one million, one hundred twenty-nine thousand, twenty-six".