121947222 has 16 divisors (see below), whose sum is σ = 258241392. Its totient is φ = 38257920.

The previous prime is 121947209. The next prime is 121947283. The reversal of 121947222 is 222749121.

It is a super-2 number, since 2×121947222² = 29742249907034568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121947222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597679 + ... + 597882.

It is an arithmetic number, because the mean of its divisors is an integer number (16140087).

Almost surely, 2^121947222 is an apocalyptic number.

121947222 is an abundant number, since it is smaller than the sum of its proper divisors (136294170).

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

121947222 is a wasteful number, since it uses less digits than its factorization.

121947222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195583.

The product of its digits is 4032, while the sum is 30.

The square root of 121947222 is about 11042.9716109388. The cubic root of 121947222 is about 495.8960364613.

The spelling of 121947222 in words is "one hundred twenty-one million, nine hundred forty-seven thousand, two hundred twenty-two".