121022645 has 16 divisors (see below), whose sum is σ = 147432960. Its totient is φ = 95356800.

The previous prime is 121022623. The next prime is 121022651. The reversal of 121022645 is 546220121.

It is a happy number.

It is not a de Polignac number, because 121022645 - 2⁶ = 121022581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121022645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191480 + ... + 192110.

It is an arithmetic number, because the mean of its divisors is an integer number (9214560).

Almost surely, 2^121022645 is an apocalyptic number.

It is an amenable number.

121022645 is a deficient number, since it is larger than the sum of its proper divisors (26410315).

121022645 is an equidigital number, since it uses as much as digits as its factorization.

121022645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 121022645 is about 11001.0292700274. The cubic root of 121022645 is about 494.6395975380.

Adding to 121022645 its reverse (546220121), we get a palindrome (667242766).

The spelling of 121022645 in words is "one hundred twenty-one million, twenty-two thousand, six hundred forty-five".