101020221110121 has 32 divisors (see below), whose sum is σ = 145429941888000. Its totient is φ = 62183017689408.

The previous prime is 101020221110089. The next prime is 101020221110143. The reversal of 101020221110121 is 121011122020101.

It is a happy number.

It is not a de Polignac number, because 101020221110121 - 2⁵ = 101020221110089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101020221110121.

It is not an unprimeable number, because it can be changed into a prime (101020221112121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2864770 + ... + 14499908.

It is an arithmetic number, because the mean of its divisors is an integer number (4544685684000).

Almost surely, 2^{101020221110121} is an apocalyptic number.

It is an amenable number.

101020221110121 is a deficient number, since it is larger than the sum of its proper divisors (44409720777879).

101020221110121 is a wasteful number, since it uses less digits than its factorization.

101020221110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11639533.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101020221110121 its reverse (121011122020101), we get a palindrome (222031343130222).

The spelling of 101020221110121 in words is "one hundred one trillion, twenty billion, two hundred twenty-one million, one hundred ten thousand, one hundred twenty-one".