122133550 has 48 divisors (see below), whose sum is σ = 283231872. Its totient is φ = 38066400.

The previous prime is 122133533. The next prime is 122133553. The reversal of 122133550 is 55331221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122133553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12012 + ... + 19711.

It is an arithmetic number, because the mean of its divisors is an integer number (5900664).

Almost surely, 2^122133550 is an apocalyptic number.

122133550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122133550 is an abundant number, since it is smaller than the sum of its proper divisors (161098322).

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

122133550 is a wasteful number, since it uses less digits than its factorization.

122133550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31753 (or 31748 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 122133550 is about 11051.4048880674. The cubic root of 122133550 is about 496.1484743463.

Adding to 122133550 its reverse (55331221), we get a palindrome (177464771).

The spelling of 122133550 in words is "one hundred twenty-two million, one hundred thirty-three thousand, five hundred fifty".