100220202020021 has 8 divisors (see below), whose sum is σ = 105613023913344. Its totient is φ = 94913665277200.

The previous prime is 100220202019999. The next prime is 100220202020047. The reversal of 100220202020021 is 120020202022001.

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 100220202020021 - 2¹⁴ = 100220202003637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100220202019978 and 100220202020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100220202020221) 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, 21571285241 + ... + 21571289886.

It is an arithmetic number, because the mean of its divisors is an integer number (13201627989168).

Almost surely, 2^{100220202020021} is an apocalyptic number.

It is an amenable number.

100220202020021 is a deficient number, since it is larger than the sum of its proper divisors (5392821893323).

100220202020021 is a wasteful number, since it uses less digits than its factorization.

100220202020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43142575251.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 100220202020021 its reverse (120020202022001), we get a palindrome (220240404042022).

The spelling of 100220202020021 in words is "one hundred trillion, two hundred twenty billion, two hundred two million, twenty thousand, twenty-one".