100021220120113 has 4 divisors (see below), whose sum is σ = 100021281600240. Its totient is φ = 100021158639988.

The previous prime is 100021220120111. The next prime is 100021220120141. The reversal of 100021220120113 is 311021022120001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100021220120113 - 2¹ = 100021220120111 is a prime.

It is a super-2 number, since 2×100021220120113² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100021220120111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28231495 + ... + 31576252.

It is an arithmetic number, because the mean of its divisors is an integer number (25005320400060).

Almost surely, 2^{100021220120113} is an apocalyptic number.

It is an amenable number.

100021220120113 is a deficient number, since it is larger than the sum of its proper divisors (61480127).

100021220120113 is an equidigital number, since it uses as much as digits as its factorization.

100021220120113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61480126.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 100021220120113 its reverse (311021022120001), we get a palindrome (411042242240114).

The spelling of 100021220120113 in words is "one hundred trillion, twenty-one billion, two hundred twenty million, one hundred twenty thousand, one hundred thirteen".