101421101 has 4 divisors (see below), whose sum is σ = 103083804. Its totient is φ = 99758400.

The previous prime is 101421097. The next prime is 101421179. The reversal of 101421101 is 101124101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101124101 = 13 ⋅7778777.

It can be written as a sum of positive squares in 2 ways, for example, as 36602500 + 64818601 = 6050^2 + 8051^2 .

It is a cyclic number.

It is not a de Polignac number, because 101421101 - 2² = 101421097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101421401) 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 3 ways as a sum of consecutive naturals, for example, 831260 + ... + 831381.

It is an arithmetic number, because the mean of its divisors is an integer number (25770951).

Almost surely, 2^101421101 is an apocalyptic number.

It is an amenable number.

101421101 is a deficient number, since it is larger than the sum of its proper divisors (1662703).

101421101 is an equidigital number, since it uses as much as digits as its factorization.

101421101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662702.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 101421101 is about 10070.8043869395. The cubic root of 101421101 is about 466.3472716429.

Adding to 101421101 its reverse (101124101), we get a palindrome (202545202).

The spelling of 101421101 in words is "one hundred one million, four hundred twenty-one thousand, one hundred one".