101022121020021 has 16 divisors (see below), whose sum is σ = 134899655267520. Its totient is φ = 67246338700800.

The previous prime is 101022121019987. The next prime is 101022121020031. The reversal of 101022121020021 is 120020121220101.

It is not a de Polignac number, because 101022121020021 - 2¹¹ = 101022121017973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101022121020031) 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, 83492715 + ... + 84694023.

It is an arithmetic number, because the mean of its divisors is an integer number (8431228454220).

Almost surely, 2^{101022121020021} is an apocalyptic number.

It is an amenable number.

101022121020021 is a deficient number, since it is larger than the sum of its proper divisors (33877534247499).

101022121020021 is a wasteful number, since it uses less digits than its factorization.

101022121020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243636.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 101022121020021 its reverse (120020121220101), we get a palindrome (221042242240122).

The spelling of 101022121020021 in words is "one hundred one trillion, twenty-two billion, one hundred twenty-one million, twenty thousand, twenty-one".