101212020211121 has 16 divisors (see below), whose sum is σ = 108523945555200. Its totient is φ = 94051053427968.

The previous prime is 101212020211103. The next prime is 101212020211123. The reversal of 101212020211121 is 121112020212101.

It is a cyclic number.

It is not a de Polignac number, because 101212020211121 - 2¹⁴ = 101212020194737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101212020211121.

It is not an unprimeable number, because it can be changed into a prime (101212020211123) 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, 87476375 + ... + 88625843.

It is an arithmetic number, because the mean of its divisors is an integer number (6782746597200).

Almost surely, 2^{101212020211121} is an apocalyptic number.

It is an amenable number.

101212020211121 is a deficient number, since it is larger than the sum of its proper divisors (7311925344079).

101212020211121 is a wasteful number, since it uses less digits than its factorization.

101212020211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215128.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101212020211121 its reverse (121112020212101), we get a palindrome (222324040423222).

The spelling of 101212020211121 in words is "one hundred one trillion, two hundred twelve billion, twenty million, two hundred eleven thousand, one hundred twenty-one".