121753212 has 24 divisors (see below), whose sum is σ = 324675456. Its totient is φ = 34786608.

The previous prime is 121753211. The next prime is 121753259. The reversal of 121753212 is 212357121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121753211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724638 + ... + 724805.

It is an arithmetic number, because the mean of its divisors is an integer number (13528144).

Almost surely, 2^121753212 is an apocalyptic number.

121753212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121753212 is an abundant number, since it is smaller than the sum of its proper divisors (202922244).

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

121753212 is a wasteful number, since it uses less digits than its factorization.

121753212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449457 (or 1449455 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 121753212 is about 11034.1837940103. The cubic root of 121753212 is about 495.6329175639.

The spelling of 121753212 in words is "one hundred twenty-one million, seven hundred fifty-three thousand, two hundred twelve".