121012299 has 12 divisors (see below), whose sum is σ = 181269816. Its totient is φ = 80674704.

The previous prime is 121012291. The next prime is 121012327. The reversal of 121012299 is 992210121.

It is not a de Polignac number, because 121012299 - 2³ = 121012291 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (121012291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 248754 + ... + 249239.

It is an arithmetic number, because the mean of its divisors is an integer number (15105818).

Almost surely, 2^121012299 is an apocalyptic number.

121012299 is a deficient number, since it is larger than the sum of its proper divisors (60257517).

121012299 is an frugal number, since it uses more digits than its factorization.

121012299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498008 (or 497996 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 121012299 is about 11000.5590312493. The cubic root of 121012299 is about 494.6255018644.

It can be divided in two parts, 12101 and 2299, that added together give a square (14400 = 120²).

The spelling of 121012299 in words is "one hundred twenty-one million, twelve thousand, two hundred ninety-nine".