122231490 has 32 divisors (see below), whose sum is σ = 299600640. Its totient is φ = 31901184.

The previous prime is 122231489. The next prime is 122231497. The reversal of 122231490 is 94132221.

It is a self number, because there is not a number n which added to its sum of digits gives 122231490.

It is not an unprimeable number, because it can be changed into a prime (122231497) 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, 41935 + ... + 44754.

It is an arithmetic number, because the mean of its divisors is an integer number (9362520).

Almost surely, 2^122231490 is an apocalyptic number.

122231490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122231490 is an abundant number, since it is smaller than the sum of its proper divisors (177369150).

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

122231490 is a wasteful number, since it uses less digits than its factorization.

122231490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86746.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 122231490 is about 11055.8351109267. The cubic root of 122231490 is about 496.2810608970.

The spelling of 122231490 in words is "one hundred twenty-two million, two hundred thirty-one thousand, four hundred ninety".