122209889 has 16 divisors (see below), whose sum is σ = 133249536. Its totient is φ = 111628800.

The previous prime is 122209883. The next prime is 122209897. The reversal of 122209889 is 988902221.

It is not a de Polignac number, because 122209889 - 2¹² = 122205793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (122209883) 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, 188564 + ... + 189210.

It is an arithmetic number, because the mean of its divisors is an integer number (8328096).

Almost surely, 2^122209889 is an apocalyptic number.

It is an amenable number.

122209889 is a deficient number, since it is larger than the sum of its proper divisors (11039647).

122209889 is a wasteful number, since it uses less digits than its factorization.

122209889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 122209889 is about 11054.8581628169. The cubic root of 122209889 is about 496.2518245718.

The spelling of 122209889 in words is "one hundred twenty-two million, two hundred nine thousand, eight hundred eighty-nine".