122121135 has 16 divisors (see below), whose sum is σ = 217104480. Its totient is φ = 65131200.

The previous prime is 122121119. The next prime is 122121187. The reversal of 122121135 is 531121221.

It is not a de Polignac number, because 122121135 - 2⁴ = 122121119 is a prime.

It is a super-2 number, since 2×122121135² = 29827143227376450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452166 + ... + 452435.

It is an arithmetic number, because the mean of its divisors is an integer number (13569030).

Almost surely, 2^122121135 is an apocalyptic number.

122121135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122121135 is a deficient number, since it is larger than the sum of its proper divisors (94983345).

122121135 is an equidigital number, since it uses as much as digits as its factorization.

122121135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904615 (or 904609 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 122121135 is about 11050.8431804998. The cubic root of 122121135 is about 496.1316624437.

Adding to 122121135 its reverse (531121221), we get a palindrome (653242356).

The spelling of 122121135 in words is "one hundred twenty-two million, one hundred twenty-one thousand, one hundred thirty-five".