100022021021 has 8 divisors (see below), whose sum is σ = 108125592960. Its totient is φ = 91976959152.

The previous prime is 100022020991. The next prime is 100022021023. The reversal of 100022021021 is 120120220001.

It is a happy number.

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

It is not a de Polignac number, because 100022021021 - 2¹⁴ = 100022004637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100022020993 and 100022021011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100022021023) 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, 14623961 + ... + 14630798.

It is an arithmetic number, because the mean of its divisors is an integer number (13515699120).

Almost surely, 2^100022021021 is an apocalyptic number.

It is an amenable number.

100022021021 is a deficient number, since it is larger than the sum of its proper divisors (8103571939).

100022021021 is a wasteful number, since it uses less digits than its factorization.

100022021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29255035.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 100022021021 its reverse (120120220001), we get a palindrome (220142241022).

The spelling of 100022021021 in words is "one hundred billion, twenty-two million, twenty-one thousand, twenty-one".