121367772 has 36 divisors (see below), whose sum is σ = 307242936. Its totient is φ = 40396320.

The previous prime is 121367767. The next prime is 121367773. The reversal of 121367772 is 277763121.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121367773) 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, 27118 + ... + 31274.

It is an arithmetic number, because the mean of its divisors is an integer number (8534526).

Almost surely, 2^121367772 is an apocalyptic number.

121367772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121367772 is an abundant number, since it is smaller than the sum of its proper divisors (185875164).

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

121367772 is a wasteful number, since it uses less digits than its factorization.

121367772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4978 (or 4973 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 121367772 is about 11016.7042258563. The cubic root of 121367772 is about 495.1093483555.

The spelling of 121367772 in words is "one hundred twenty-one million, three hundred sixty-seven thousand, seven hundred seventy-two".