120100021022101 has 4 divisors (see below), whose sum is σ = 122068873825804. Its totient is φ = 118131168218400.

The previous prime is 120100021022087. The next prime is 120100021022119. The reversal of 120100021022101 is 101220120001021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7382007490225 + 112718013531876 = 2716985^2 + 10616874^2 .

It is a cyclic number.

It is not a de Polignac number, because 120100021022101 - 2¹¹ = 120100021020053 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 (120100021022701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984426401760 + ... + 984426401881.

It is an arithmetic number, because the mean of its divisors is an integer number (30517218456451).

Almost surely, 2^{120100021022101} is an apocalyptic number.

It is an amenable number.

120100021022101 is a deficient number, since it is larger than the sum of its proper divisors (1968852803703).

120100021022101 is an equidigital number, since it uses as much as digits as its factorization.

120100021022101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968852803702.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120100021022101 its reverse (101220120001021), we get a palindrome (221320141023122).

The spelling of 120100021022101 in words is "one hundred twenty trillion, one hundred billion, twenty-one million, twenty-two thousand, one hundred one".