121207086 has 216 divisors, whose sum is σ = 370849752. Its totient is φ = 28123200.

The previous prime is 121207081. The next prime is 121207091. The reversal of 121207086 is 680702121.

It is an interprime number because it is at equal distance from previous prime (121207081) and next prime (121207091).

It is a super-2 number, since 2×121207086² = 29382315393222792, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121207081) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 3909891 + ... + 3909921.

It is an arithmetic number, because the mean of its divisors is an integer number (1716897).

Almost surely, 2^121207086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121207086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185424876).

121207086 is an abundant number, since it is smaller than the sum of its proper divisors (249642666).

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

121207086 is a wasteful number, since it uses less digits than its factorization.

121207086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 121207086 is about 11009.4089759623. The cubic root of 121207086 is about 494.8907503004.

The spelling of 121207086 in words is "one hundred twenty-one million, two hundred seven thousand, eighty-six".