100021220111011 has 8 divisors (see below), whose sum is σ = 100030800668400. Its totient is φ = 100011640044960.

The previous prime is 100021220111003. The next prime is 100021220111101. The reversal of 100021220111011 is 110111022120001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100021220111011 - 2³ = 100021220111003 is a prime.

It is a super-2 number, since 2×100021220111011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100021220110982 and 100021220111000.

It is not an unprimeable number, because it can be changed into a prime (100021220111411) 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, 499154701 + ... + 499355041.

It is an arithmetic number, because the mean of its divisors is an integer number (12503850083550).

Almost surely, 2^{100021220111011} is an apocalyptic number.

100021220111011 is a deficient number, since it is larger than the sum of its proper divisors (9580557389).

100021220111011 is a wasteful number, since it uses less digits than its factorization.

100021220111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245669.

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

Adding to 100021220111011 its reverse (110111022120001), we get a palindrome (210132242231012).

The spelling of 100021220111011 in words is "one hundred trillion, twenty-one billion, two hundred twenty million, one hundred eleven thousand, eleven".