10121220101101 has 4 divisors (see below), whose sum is σ = 10140572338912. Its totient is φ = 10101867863292.

The previous prime is 10121220101087. The next prime is 10121220101107. The reversal of 10121220101101 is 10110102212101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10121220101101 - 2³¹ = 10119072617453 is a prime.

It is a super-2 number, since 2×10121220101101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121220101107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9676118121 + ... + 9676119166.

It is an arithmetic number, because the mean of its divisors is an integer number (2535143084728).

Almost surely, 2^{10121220101101} is an apocalyptic number.

It is an amenable number.

10121220101101 is a deficient number, since it is larger than the sum of its proper divisors (19352237811).

10121220101101 is an equidigital number, since it uses as much as digits as its factorization.

10121220101101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19352237810.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10121220101101 its reverse (10110102212101), we get a palindrome (20231322313202).

The spelling of 10121220101101 in words is "ten trillion, one hundred twenty-one billion, two hundred twenty million, one hundred one thousand, one hundred one".