101212120122121 has 8 divisors (see below), whose sum is σ = 101605507902720. Its totient is φ = 100819491046608.

The previous prime is 101212120122073. The next prime is 101212120122131. The reversal of 101212120122121 is 121221021212101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101212120122121 - 2¹⁹ = 101212119597833 is a prime.

It is a super-2 number, since 2×101212120122121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101212120122131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189408951 + ... + 189942556.

It is an arithmetic number, because the mean of its divisors is an integer number (12700688487840).

Almost surely, 2^{101212120122121} is an apocalyptic number.

It is an amenable number.

101212120122121 is a deficient number, since it is larger than the sum of its proper divisors (393387780599).

101212120122121 is an equidigital number, since it uses as much as digits as its factorization.

101212120122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379352543.

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

Adding to 101212120122121 its reverse (121221021212101), we get a palindrome (222433141334222).

The spelling of 101212120122121 in words is "one hundred one trillion, two hundred twelve billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twenty-one".