122120540 has 24 divisors (see below), whose sum is σ = 257109552. Its totient is φ = 48723200.

The previous prime is 122120539. The next prime is 122120599. The reversal of 122120540 is 45021221.

It is a congruent number.

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, 407 + ... + 15633.

It is an arithmetic number, because the mean of its divisors is an integer number (10712898).

Almost surely, 2^122120540 is an apocalyptic number.

122120540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122120540 is an abundant number, since it is smaller than the sum of its proper divisors (134989012).

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

122120540 is a wasteful number, since it uses less digits than its factorization.

122120540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15637 (or 15635 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 122120540 is about 11050.8162594444. The cubic root of 122120540 is about 496.1308566896.

Adding to 122120540 its reverse (45021221), we get a palindrome (167141761).

The spelling of 122120540 in words is "one hundred twenty-two million, one hundred twenty thousand, five hundred forty".