101020000010121 has 96 divisors (see below), whose sum is σ = 154913025346560. Its totient is φ = 63374892134400.

The previous prime is 101020000010113. The next prime is 101020000010123. The reversal of 101020000010121 is 121010000020101.

It is a happy number.

It is not a de Polignac number, because 101020000010121 - 2³ = 101020000010113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (101020000010123) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 194865541 + ... + 195383261.

It is an arithmetic number, because the mean of its divisors is an integer number (1613677347360).

Almost surely, 2^{101020000010121} is an apocalyptic number.

It is an amenable number.

101020000010121 is a deficient number, since it is larger than the sum of its proper divisors (53893025336439).

101020000010121 is a wasteful number, since it uses less digits than its factorization.

101020000010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518007 (or 518004 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101020000010121 its reverse (121010000020101), we get a palindrome (222030000030222).

The spelling of 101020000010121 in words is "one hundred one trillion, twenty billion, ten thousand, one hundred twenty-one".