121886292 has 96 divisors (see below), whose sum is σ = 340945920. Its totient is φ = 33454080.

The previous prime is 121886267. The next prime is 121886293. The reversal of 121886292 is 292688121.

It is a self number, because there is not a number n which added to its sum of digits gives 121886292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121886293) 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, 56628 + ... + 58740.

It is an arithmetic number, because the mean of its divisors is an integer number (3551520).

Almost surely, 2^121886292 is an apocalyptic number.

121886292 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121886292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170472960).

121886292 is an abundant number, since it is smaller than the sum of its proper divisors (219059628).

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

121886292 is a wasteful number, since it uses less digits than its factorization.

121886292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173 (or 2171 counting only the distinct ones).

The product of its digits is 27648, while the sum is 39.

The square root of 121886292 is about 11040.2124979549. The cubic root of 121886292 is about 495.8134324773.

The spelling of 121886292 in words is "one hundred twenty-one million, eight hundred eighty-six thousand, two hundred ninety-two".