101220210101101 has 32 divisors (see below), whose sum is σ = 125502302193408. Its totient is φ = 79492721518080.

The previous prime is 101220210101089. The next prime is 101220210101123. The reversal of 101220210101101 is 101101012022101.

It is a happy number.

It is not a de Polignac number, because 101220210101101 - 2⁵ = 101220210101069 is a prime.

It is a super-2 number, since 2×101220210101101² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101220210161101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110412546 + ... + 111325516.

It is an arithmetic number, because the mean of its divisors is an integer number (3921946943544).

Almost surely, 2^{101220210101101} is an apocalyptic number.

It is an amenable number.

101220210101101 is a deficient number, since it is larger than the sum of its proper divisors (24282092092307).

101220210101101 is a wasteful number, since it uses less digits than its factorization.

101220210101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 922021.

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

Adding to 101220210101101 its reverse (101101012022101), we get a palindrome (202321222123202).

The spelling of 101220210101101 in words is "one hundred one trillion, two hundred twenty billion, two hundred ten million, one hundred one thousand, one hundred one".