122898870 has 80 divisors (see below), whose sum is σ = 335272608. Its totient is φ = 32296320.

The previous prime is 122898869. The next prime is 122898871. The reversal of 122898870 is 78898221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122898869) and next prime (122898871).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122898871) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 56442 + ... + 58578.

Almost surely, 2^122898870 is an apocalyptic number.

122898870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122898870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167636304).

122898870 is an abundant number, since it is smaller than the sum of its proper divisors (212373738).

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

122898870 is a wasteful number, since it uses less digits than its factorization.

122898870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227 (or 2218 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 122898870 is about 11085.9762763592. The cubic root of 122898870 is about 497.1826482080.

The spelling of 122898870 in words is "one hundred twenty-two million, eight hundred ninety-eight thousand, eight hundred seventy".