121553322 has 32 divisors (see below), whose sum is σ = 268850880. Its totient is φ = 36328320.

The previous prime is 121553293. The next prime is 121553329. The reversal of 121553322 is 223355121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121553292 and 121553301.

It is not an unprimeable number, because it can be changed into a prime (121553329) 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, 7797 + ... + 17432.

It is an arithmetic number, because the mean of its divisors is an integer number (8401590).

Almost surely, 2^121553322 is an apocalyptic number.

121553322 is an abundant number, since it is smaller than the sum of its proper divisors (147297558).

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

121553322 is a wasteful number, since it uses less digits than its factorization.

121553322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25318.

The product of its digits is 1800, while the sum is 24.

The square root of 121553322 is about 11025.1223122467. The cubic root of 121553322 is about 495.3615316201.

The spelling of 121553322 in words is "one hundred twenty-one million, five hundred fifty-three thousand, three hundred twenty-two".