121807822 has 32 divisors (see below), whose sum is σ = 205109280. Its totient is φ = 53913600.

The previous prime is 121807817. The next prime is 121807823. The reversal of 121807822 is 228708121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121807823) 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, 100822 + ... + 102022.

It is an arithmetic number, because the mean of its divisors is an integer number (6409665).

Almost surely, 2^121807822 is an apocalyptic number.

121807822 is a deficient number, since it is larger than the sum of its proper divisors (83301458).

121807822 is a wasteful number, since it uses less digits than its factorization.

121807822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396.

The product of its (nonzero) digits is 3584, while the sum is 31.

The square root of 121807822 is about 11036.6580992618. The cubic root of 121807822 is about 495.7070086083.

It can be divided in two parts, 12180 and 7822, that added together give a palindrome (20002).

The spelling of 121807822 in words is "one hundred twenty-one million, eight hundred seven thousand, eight hundred twenty-two".