201010121010101 has 16 divisors (see below), whose sum is σ = 219522503426688. Its totient is φ = 182933489793600.

The previous prime is 201010121010073. The next prime is 201010121010107. The reversal of 201010121010101 is 101010121010102.

It is a de Polignac number, because none of the positive numbers 2^k-201010121010101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201010121010107) 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, 220656566 + ... + 221565656.

It is an arithmetic number, because the mean of its divisors is an integer number (13720156464168).

Almost surely, 2^{201010121010101} is an apocalyptic number.

It is an amenable number.

201010121010101 is a deficient number, since it is larger than the sum of its proper divisors (18512382416587).

201010121010101 is a wasteful number, since it uses less digits than its factorization.

201010121010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1148732.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201010121010101 its reverse (101010121010102), we get a palindrome (302020242020203).

Subtracting from 201010121010101 its reverse (101010121010102), we obtain a palindrome (99999999999999).

The spelling of 201010121010101 in words is "two hundred one trillion, ten billion, one hundred twenty-one million, ten thousand, one hundred one".