122212530 has 64 divisors (see below), whose sum is σ = 355536000. Its totient is φ = 29626560.

The previous prime is 122212529. The next prime is 122212537. The reversal of 122212530 is 35212221.

122212530 is a `hidden beast` number, since 122 + 2 + 12 + 530 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (122212537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17605 + ... + 23544.

It is an arithmetic number, because the mean of its divisors is an integer number (5555250).

Almost surely, 2^122212530 is an apocalyptic number.

122212530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122212530 is an abundant number, since it is smaller than the sum of its proper divisors (233323470).

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

122212530 is a wasteful number, since it uses less digits than its factorization.

122212530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41176 (or 41170 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 122212530 is about 11054.9776119176. The cubic root of 122212530 is about 496.2553992734.

Adding to 122212530 its reverse (35212221), we get a palindrome (157424751).

The spelling of 122212530 in words is "one hundred twenty-two million, two hundred twelve thousand, five hundred thirty".