101002210212121 has 4 divisors (see below), whose sum is σ = 101346927653412. Its totient is φ = 100657492770832.

The previous prime is 101002210212109. The next prime is 101002210212181. The reversal of 101002210212121 is 121212012200101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86889896175625 + 14112314036496 = 9321475^2 + 3756636^2 .

It is a cyclic number.

It is not a de Polignac number, because 101002210212121 - 2³⁵ = 100967850473753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101002210212095 and 101002210212104.

It is not an unprimeable number, because it can be changed into a prime (101002210212181) 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, 172358720206 + ... + 172358720791.

It is an arithmetic number, because the mean of its divisors is an integer number (25336731913353).

Almost surely, 2^{101002210212121} is an apocalyptic number.

It is an amenable number.

101002210212121 is a deficient number, since it is larger than the sum of its proper divisors (344717441291).

101002210212121 is an equidigital number, since it uses as much as digits as its factorization.

101002210212121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344717441290.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101002210212121 its reverse (121212012200101), we get a palindrome (222214222412222).

The spelling of 101002210212121 in words is "one hundred one trillion, two billion, two hundred ten million, two hundred twelve thousand, one hundred twenty-one".