100021101022020 has 48 divisors (see below), whose sum is σ = 284239069184448. Its totient is φ = 26274199670400.

The previous prime is 100021101022019. The next prime is 100021101022081. The reversal of 100021101022020 is 20220101120001.

It is a super-4 number, since 4×100021101022020⁴ (a number of 57 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 100021101021987 and 100021101022005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12440431431 + ... + 12440439470.

It is an arithmetic number, because the mean of its divisors is an integer number (5921647274676).

Almost surely, 2^{100021101022020} is an apocalyptic number.

100021101022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100021101022020 is an abundant number, since it is smaller than the sum of its proper divisors (184217968162428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100021101022020 is a wasteful number, since it uses less digits than its factorization.

100021101022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24880870980 (or 24880870978 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100021101022020 its reverse (20220101120001), we get a palindrome (120241202142021).

The spelling of 100021101022020 in words is "one hundred trillion, twenty-one billion, one hundred one million, twenty-two thousand, twenty".