101986122 has 16 divisors (see below), whose sum is σ = 233111232. Its totient is φ = 29138880.

The previous prime is 101986051. The next prime is 101986123. The reversal of 101986122 is 221689101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 101986122.

It is not an unprimeable number, because it can be changed into a prime (101986123) 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, 1214079 + ... + 1214162.

It is an arithmetic number, because the mean of its divisors is an integer number (14569452).

Almost surely, 2^101986122 is an apocalyptic number.

101986122 is an abundant number, since it is smaller than the sum of its proper divisors (131125110).

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

101986122 is a wasteful number, since it uses less digits than its factorization.

101986122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428253.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 101986122 is about 10098.8178516102. The cubic root of 101986122 is about 467.2116814894.

The spelling of 101986122 in words is "one hundred one million, nine hundred eighty-six thousand, one hundred twenty-two".