121335490 has 32 divisors (see below), whose sum is σ = 222497280. Its totient is φ = 47631744.

The previous prime is 121335439. The next prime is 121335493. The reversal of 121335490 is 94533121.

It is a super-2 number, since 2×121335490² = 29444602267080200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121335493) 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, 253071 + ... + 253549.

It is an arithmetic number, because the mean of its divisors is an integer number (6953040).

Almost surely, 2^121335490 is an apocalyptic number.

121335490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121335490 is a deficient number, since it is larger than the sum of its proper divisors (101161790).

121335490 is a wasteful number, since it uses less digits than its factorization.

121335490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 121335490 is about 11015.2389896906. The cubic root of 121335490 is about 495.0654472523.

The spelling of 121335490 in words is "one hundred twenty-one million, three hundred thirty-five thousand, four hundred ninety".