101010120001021 has 12 divisors (see below), whose sum is σ = 128183528907360. Its totient is φ = 78709184415960.

The previous prime is 101010120001019. The next prime is 101010120001031. The reversal of 101010120001021 is 120100021010101.

It is not a de Polignac number, because 101010120001021 - 2¹ = 101010120001019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101010120000989 and 101010120001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101010120001031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93701409481 + ... + 93701410558.

It is an arithmetic number, because the mean of its divisors is an integer number (10681960742280).

Almost surely, 2^{101010120001021} is an apocalyptic number.

101010120001021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101010120001021 is a deficient number, since it is larger than the sum of its proper divisors (27173408906339).

101010120001021 is a wasteful number, since it uses less digits than its factorization.

101010120001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187402820064 (or 187402820057 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 101010120001021 its reverse (120100021010101), we get a palindrome (221110141011122).

The spelling of 101010120001021 in words is "one hundred one trillion, ten billion, one hundred twenty million, one thousand, twenty-one".