101100202111221 has 8 divisors (see below), whose sum is σ = 134859211453824. Its totient is φ = 67370663754720.

The previous prime is 101100202111201. The next prime is 101100202111229. The reversal of 101100202111221 is 122111202001101.

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 101100202111221 - 2¹⁹ = 101100201586933 is a prime.

It is a super-2 number, since 2×101100202111221² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101100202111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101100202111229) 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, 7367738520 + ... + 7367752241.

It is an arithmetic number, because the mean of its divisors is an integer number (16857401431728).

Almost surely, 2^{101100202111221} is an apocalyptic number.

It is an amenable number.

101100202111221 is a deficient number, since it is larger than the sum of its proper divisors (33759009342603).

101100202111221 is a wasteful number, since it uses less digits than its factorization.

101100202111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14735493051.

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

Adding to 101100202111221 its reverse (122111202001101), we get a palindrome (223211404112322).

The spelling of 101100202111221 in words is "one hundred one trillion, one hundred billion, two hundred two million, one hundred eleven thousand, two hundred twenty-one".