101212222110121 has 4 divisors (see below), whose sum is σ = 101214012931200. Its totient is φ = 101210431289044.

The previous prime is 101212222110101. The next prime is 101212222110161. The reversal of 101212222110121 is 121011222212101.

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 101212222110121 - 2⁵ = 101212222110089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101212222110101) 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, 895325761 + ... + 895438798.

It is an arithmetic number, because the mean of its divisors is an integer number (25303503232800).

Almost surely, 2^{101212222110121} is an apocalyptic number.

It is an amenable number.

101212222110121 is a deficient number, since it is larger than the sum of its proper divisors (1790821079).

101212222110121 is an equidigital number, since it uses as much as digits as its factorization.

101212222110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1790821078.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 101212222110121 its reverse (121011222212101), we get a palindrome (222223444322222).

The spelling of 101212222110121 in words is "one hundred one trillion, two hundred twelve billion, two hundred twenty-two million, one hundred ten thousand, one hundred twenty-one".