101250121 has 6 divisors (see below), whose sum is σ = 117780810. Its totient is φ = 86785776.

The previous prime is 101250109. The next prime is 101250131. The reversal of 101250121 is 121052101.

It can be written as a sum of positive squares in only one way, i.e., 79905721 + 21344400 = 8939^2 + 4620^2 .

It is not a de Polignac number, because 101250121 - 2¹⁵ = 101217353 is a prime.

It is a super-3 number, since 3×101250121³ (a number of 25 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (101250101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1033116 + ... + 1033213.

It is an arithmetic number, because the mean of its divisors is an integer number (19630135).

Almost surely, 2^101250121 is an apocalyptic number.

It is an amenable number.

101250121 is a deficient number, since it is larger than the sum of its proper divisors (16530689).

101250121 is an equidigital number, since it uses as much as digits as its factorization.

101250121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066343 (or 2066336 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 101250121 is about 10062.3119112856. The cubic root of 101250121 is about 466.0850615597.

The spelling of 101250121 in words is "one hundred one million, two hundred fifty thousand, one hundred twenty-one".