101200921 has 8 divisors (see below), whose sum is σ = 103304160. Its totient is φ = 99119328.

The previous prime is 101200919. The next prime is 101200927. The reversal of 101200921 is 129002101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101200921 - 2¹ = 101200919 is a prime.

It is a super-2 number, since 2×101200921² = 20483252822496482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101200895 and 101200904.

It is not an unprimeable number, because it can be changed into a prime (101200927) 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, 4210 + ... + 14836.

It is an arithmetic number, because the mean of its divisors is an integer number (12913020).

Almost surely, 2^101200921 is an apocalyptic number.

It is an amenable number.

101200921 is a deficient number, since it is larger than the sum of its proper divisors (2103239).

101200921 is a wasteful number, since it uses less digits than its factorization.

101200921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10823.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 101200921 is about 10059.8668480254. The cubic root of 101200921 is about 466.0095551468.

The spelling of 101200921 in words is "one hundred one million, two hundred thousand, nine hundred twenty-one".