101021020110021 has 16 divisors (see below), whose sum is σ = 146939834285568. Its totient is φ = 61224790393200.

The previous prime is 101021020109969. The next prime is 101021020110041. The reversal of 101021020110021 is 120011020120101.

It is not a de Polignac number, because 101021020110021 - 2³⁰ = 101019946368197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101021020109979 and 101021020110006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101021020110041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51724656 + ... + 53642166.

It is an arithmetic number, because the mean of its divisors is an integer number (9183739642848).

Almost surely, 2^{101021020110021} is an apocalyptic number.

101021020110021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

101021020110021 is a deficient number, since it is larger than the sum of its proper divisors (45918814175547).

101021020110021 is a wasteful number, since it uses less digits than its factorization.

101021020110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513992.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101021020110021 its reverse (120011020120101), we get a palindrome (221032040230122).

The spelling of 101021020110021 in words is "one hundred one trillion, twenty-one billion, twenty million, one hundred ten thousand, twenty-one".