100212020220 has 96 divisors (see below), whose sum is σ = 305169883200. Its totient is φ = 24423321600.

The previous prime is 100212020219. The next prime is 100212020243. The reversal of 100212020220 is 22020212001.

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 = 100212020196 and 100212020205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 557245 + ... + 714804.

It is an arithmetic number, because the mean of its divisors is an integer number (3178852950).

Almost surely, 2^100212020220 is an apocalyptic number.

100212020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100212020220 is an abundant number, since it is smaller than the sum of its proper divisors (204957862980).

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

100212020220 is a wasteful number, since it uses less digits than its factorization.

100212020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272175 (or 1272173 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 100212020220 its reverse (22020212001), we get a palindrome (122232232221).

The spelling of 100212020220 in words is "one hundred billion, two hundred twelve million, twenty thousand, two hundred twenty".