100021110221021 has 16 divisors (see below), whose sum is σ = 109140920683200. Its totient is φ = 90905799744000.

The previous prime is 100021110220949. The next prime is 100021110221059. The reversal of 100021110221021 is 120122011120001.

It is a cyclic number.

It is not a de Polignac number, because 100021110221021 - 2³⁰ = 100020036479197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100021110220987 and 100021110221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100021110221821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767091410 + ... + 767221788.

It is an arithmetic number, because the mean of its divisors is an integer number (6821307542700).

Almost surely, 2^{100021110221021} is an apocalyptic number.

100021110221021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100021110221021 is a deficient number, since it is larger than the sum of its proper divisors (9119810462179).

100021110221021 is a wasteful number, since it uses less digits than its factorization.

100021110221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147100.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 100021110221021 its reverse (120122011120001), we get a palindrome (220143121341022).

The spelling of 100021110221021 in words is "one hundred trillion, twenty-one billion, one hundred ten million, two hundred twenty-one thousand, twenty-one".