101011211100121 has 16 divisors (see below), whose sum is σ = 119422650291840. Its totient is φ = 83595114892800.

The previous prime is 101011211100061. The next prime is 101011211100199. The reversal of 101011211100121 is 121001112110101.

It is not a de Polignac number, because 101011211100121 - 2⁷ = 101011211099993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101011211100721) 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, 50883846 + ... + 52831696.

It is an arithmetic number, because the mean of its divisors is an integer number (7463915643240).

Almost surely, 2^{101011211100121} is an apocalyptic number.

It is an amenable number.

101011211100121 is a deficient number, since it is larger than the sum of its proper divisors (18411439191719).

101011211100121 is a wasteful number, since it uses less digits than its factorization.

101011211100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203344.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 101011211100121 its reverse (121001112110101), we get a palindrome (222012323210222).

The spelling of 101011211100121 in words is "one hundred one trillion, eleven billion, two hundred eleven million, one hundred thousand, one hundred twenty-one".