121620267 has 12 divisors (see below), whose sum is σ = 176199400. Its totient is φ = 80837568.

The previous prime is 121620259. The next prime is 121620281. The reversal of 121620267 is 762026121.

121620267 is a `hidden beast` number, since 12 + 1 + 620 + 26 + 7 = 666.

It is not a de Polignac number, because 121620267 - 2³ = 121620259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121620267.

It is not an unprimeable number, because it can be changed into a prime (121620217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17017 + ... + 23082.

Almost surely, 2^121620267 is an apocalyptic number.

121620267 is a deficient number, since it is larger than the sum of its proper divisors (54579133).

121620267 is a wasteful number, since it uses less digits than its factorization.

121620267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40442 (or 40439 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 121620267 is about 11028.1579150826. The cubic root of 121620267 is about 495.4524543831.

Adding to 121620267 its reverse (762026121), we get a palindrome (883646388).

The spelling of 121620267 in words is "one hundred twenty-one million, six hundred twenty thousand, two hundred sixty-seven".