121288922 has 4 divisors (see below), whose sum is σ = 181933386. Its totient is φ = 60644460.

The previous prime is 121288907. The next prime is 121288943. The reversal of 121288922 is 229882121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 86843761 + 34445161 = 9319^2 + 5869^2 .

It is a super-2 number, since 2×121288922² = 29422005199844168, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30322229 + ... + 30322232.

Almost surely, 2^121288922 is an apocalyptic number.

121288922 is a deficient number, since it is larger than the sum of its proper divisors (60644464).

121288922 is an equidigital number, since it uses as much as digits as its factorization.

121288922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60644463.

The product of its digits is 9216, while the sum is 35.

The square root of 121288922 is about 11013.1249879405. The cubic root of 121288922 is about 495.0021045382.

The spelling of 121288922 in words is "one hundred twenty-one million, two hundred eighty-eight thousand, nine hundred twenty-two".