101111100202221 has 8 divisors (see below), whose sum is σ = 134815877041824. Its totient is φ = 67406861748720.

The previous prime is 101111100202207. The next prime is 101111100202261. The reversal of 101111100202221 is 122202001111101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101111100202221 - 2⁶ = 101111100202157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101111100202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111100202261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134158111 + ... + 134909676.

It is an arithmetic number, because the mean of its divisors is an integer number (16851984630228).

Almost surely, 2^{101111100202221} is an apocalyptic number.

It is an amenable number.

101111100202221 is a deficient number, since it is larger than the sum of its proper divisors (33704776839603).

101111100202221 is a wasteful number, since it uses less digits than its factorization.

101111100202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269193051.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 101111100202221 its reverse (122202001111101), we get a palindrome (223313101313322).

The spelling of 101111100202221 in words is "one hundred one trillion, one hundred eleven billion, one hundred million, two hundred two thousand, two hundred twenty-one".