101012002112121 has 4 divisors (see below), whose sum is σ = 134682669482832. Its totient is φ = 67341334741412.

The previous prime is 101012002112083. The next prime is 101012002112141. The reversal of 101012002112121 is 121211200210101.

It is a happy number.

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 101012002112121 - 2⁶ = 101012002112057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101012002112121.

It is not an unprimeable number, because it can be changed into a prime (101012002112141) 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, 16835333685351 + ... + 16835333685356.

It is an arithmetic number, because the mean of its divisors is an integer number (33670667370708).

Almost surely, 2^{101012002112121} is an apocalyptic number.

It is an amenable number.

101012002112121 is a deficient number, since it is larger than the sum of its proper divisors (33670667370711).

101012002112121 is an equidigital number, since it uses as much as digits as its factorization.

101012002112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33670667370710.

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

Adding to 101012002112121 its reverse (121211200210101), we get a palindrome (222223202322222).

The spelling of 101012002112121 in words is "one hundred one trillion, twelve billion, two million, one hundred twelve thousand, one hundred twenty-one".