121225377 has 32 divisors (see below), whose sum is σ = 209413120. Its totient is φ = 60575040.

The previous prime is 121225369. The next prime is 121225381. The reversal of 121225377 is 773522121.

It is not a de Polignac number, because 121225377 - 2³ = 121225369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121225327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6499 + ... + 16872.

It is an arithmetic number, because the mean of its divisors is an integer number (6544160).

Almost surely, 2^121225377 is an apocalyptic number.

It is an amenable number.

121225377 is a deficient number, since it is larger than the sum of its proper divisors (88187743).

121225377 is a wasteful number, since it uses less digits than its factorization.

121225377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23413.

The product of its digits is 5880, while the sum is 30.

The square root of 121225377 is about 11010.2396431685. The cubic root of 121225377 is about 494.9156432109.

Adding to 121225377 its reverse (773522121), we get a palindrome (894747498).

The spelling of 121225377 in words is "one hundred twenty-one million, two hundred twenty-five thousand, three hundred seventy-seven".