121400022 has 16 divisors (see below), whose sum is σ = 246126960. Its totient is φ = 39912192.

The previous prime is 121400017. The next prime is 121400053. The reversal of 121400022 is 220004121.

It is a junction number, because it is equal to n+sod(n) for n = 121399980 and 121400007.

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, 138147 + ... + 139022.

It is an arithmetic number, because the mean of its divisors is an integer number (15382935).

Almost surely, 2^121400022 is an apocalyptic number.

121400022 is an abundant number, since it is smaller than the sum of its proper divisors (124726938).

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

121400022 is a wasteful number, since it uses less digits than its factorization.

121400022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277247.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 121400022 is about 11018.1678150226. The cubic root of 121400022 is about 495.1531981688.

Adding to 121400022 its reverse (220004121), we get a palindrome (341404143).

The spelling of 121400022 in words is "one hundred twenty-one million, four hundred thousand, twenty-two".