100100021222020 has 48 divisors (see below), whose sum is σ = 230894328147840. Its totient is φ = 36283394416896.

The previous prime is 100100021222017. The next prime is 100100021222023. The reversal of 100100021222020 is 20222120001001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100100021222017) and next prime (100100021222023).

It is not an unprimeable number, because it can be changed into a prime (100100021222023) 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, 5726537097 + ... + 5726554576.

It is an arithmetic number, because the mean of its divisors is an integer number (4810298503080).

Almost surely, 2^{100100021222020} is an apocalyptic number.

100100021222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100100021222020 is an abundant number, since it is smaller than the sum of its proper divisors (130794306925820).

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

100100021222020 is a wasteful number, since it uses less digits than its factorization.

100100021222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11453091724 (or 11453091722 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100100021222020 its reverse (20222120001001), we get a palindrome (120322141223021).

The spelling of 100100021222020 in words is "one hundred trillion, one hundred billion, twenty-one million, two hundred twenty-two thousand, twenty".