122236890 has 32 divisors (see below), whose sum is σ = 293664960. Its totient is φ = 32563584.

The previous prime is 122236853. The next prime is 122236897. The reversal of 122236890 is 98632221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (122236897) 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, 48481 + ... + 50939.

It is an arithmetic number, because the mean of its divisors is an integer number (9177030).

Almost surely, 2^122236890 is an apocalyptic number.

122236890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122236890 is an abundant number, since it is smaller than the sum of its proper divisors (171428070).

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

122236890 is a wasteful number, since it uses less digits than its factorization.

122236890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 122236890 is about 11056.0793231597. The cubic root of 122236890 is about 496.2883691017.

The spelling of 122236890 in words is "one hundred twenty-two million, two hundred thirty-six thousand, eight hundred ninety".