101011202020121 has 4 divisors (see below), whose sum is σ = 101053098000144. Its totient is φ = 100969306040100.

The previous prime is 101011202020103. The next prime is 101011202020153. The reversal of 101011202020121 is 121020202110101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101011202020121 - 2²⁶ = 101011134911257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101011202020096 and 101011202020105.

It is not an unprimeable number, because it can be changed into a prime (101011202020171) 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, 20947986395 + ... + 20947991216.

It is an arithmetic number, because the mean of its divisors is an integer number (25263274500036).

Almost surely, 2^{101011202020121} is an apocalyptic number.

It is an amenable number.

101011202020121 is a deficient number, since it is larger than the sum of its proper divisors (41895980023).

101011202020121 is an equidigital number, since it uses as much as digits as its factorization.

101011202020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41895980022.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101011202020121 its reverse (121020202110101), we get a palindrome (222031404130222).

The spelling of 101011202020121 in words is "one hundred one trillion, eleven billion, two hundred two million, twenty thousand, one hundred twenty-one".