101212210001121 has 16 divisors (see below), whose sum is σ = 135110536767360. Its totient is φ = 67394382981120.

The previous prime is 101212210001107. The next prime is 101212210001129. The reversal of 101212210001121 is 121100012212101.

It is a happy number.

It is not a de Polignac number, because 101212210001121 - 2²¹ = 101212207903969 is a prime.

It is a super-2 number, since 2×101212210001121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101212210001121.

It is not an unprimeable number, because it can be changed into a prime (101212210001129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5898631 + ... + 15401891.

It is an arithmetic number, because the mean of its divisors is an integer number (8444408547960).

Almost surely, 2^{101212210001121} is an apocalyptic number.

It is an amenable number.

101212210001121 is a deficient number, since it is larger than the sum of its proper divisors (33898326766239).

101212210001121 is a wasteful number, since it uses less digits than its factorization.

101212210001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9507496.

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

Adding to 101212210001121 its reverse (121100012212101), we get a palindrome (222312222213222).

The spelling of 101212210001121 in words is "one hundred one trillion, two hundred twelve billion, two hundred ten million, one thousand, one hundred twenty-one".