100220020111221 has 8 divisors (see below), whose sum is σ = 133728932732064. Its totient is φ = 66762227115600.

The previous prime is 100220020111193. The next prime is 100220020111231. The reversal of 100220020111221 is 122111020022001.

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

It is not a de Polignac number, because 100220020111221 - 2¹³ = 100220020103029 is a prime.

It is a super-2 number, since 2×100220020111221² (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 100220020111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220020111231) 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, 12779901730 + ... + 12779909571.

It is an arithmetic number, because the mean of its divisors is an integer number (16716116591508).

Almost surely, 2^{100220020111221} is an apocalyptic number.

It is an amenable number.

100220020111221 is a deficient number, since it is larger than the sum of its proper divisors (33508912620843).

100220020111221 is a wasteful number, since it uses less digits than its factorization.

100220020111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25559812611.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 100220020111221 its reverse (122111020022001), we get a palindrome (222331040133222).

The spelling of 100220020111221 in words is "one hundred trillion, two hundred twenty billion, twenty million, one hundred eleven thousand, two hundred twenty-one".