121801662 has 24 divisors (see below), whose sum is σ = 266872320. Its totient is φ = 40143840.

The previous prime is 121801643. The next prime is 121801663. The reversal of 121801662 is 266108121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121801663) 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, 36414 + ... + 39617.

It is an arithmetic number, because the mean of its divisors is an integer number (11119680).

Almost surely, 2^121801662 is an apocalyptic number.

121801662 is an abundant number, since it is smaller than the sum of its proper divisors (145070658).

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

121801662 is a wasteful number, since it uses less digits than its factorization.

121801662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76128 (or 76125 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 121801662 is about 11036.3790257493. The cubic root of 121801662 is about 495.6986522576.

Adding to 121801662 its reverse (266108121), we get a palindrome (387909783).

The spelling of 121801662 in words is "one hundred twenty-one million, eight hundred one thousand, six hundred sixty-two".