121565022 has 8 divisors (see below), whose sum is σ = 243130056. Its totient is φ = 40521672.

The previous prime is 121564991. The next prime is 121565033. The reversal of 121565022 is 220565121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

121565022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 121564983 and 121565001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10130413 + ... + 10130424.

It is an arithmetic number, because the mean of its divisors is an integer number (30391257).

Almost surely, 2^121565022 is an apocalyptic number.

121565022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121565022 is a wasteful number, since it uses less digits than its factorization.

121565022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20260842.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 121565022 is about 11025.6529058374. The cubic root of 121565022 is about 495.3774246287.

Subtracting 121565022 from its reverse (220565121), we obtain a palindrome (99000099).

The spelling of 121565022 in words is "one hundred twenty-one million, five hundred sixty-five thousand, twenty-two".