100011021020220 has 48 divisors (see below), whose sum is σ = 285988962244608. Its totient is φ = 26102167187520.

The previous prime is 100011021020203. The next prime is 100011021020237. The reversal of 100011021020220 is 22020120110001.

It is an interprime number because it is at equal distance from previous prime (100011021020203) and next prime (100011021020237).

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 = 100011021020196 and 100011021020205.

It is a congruent number.

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, 17732447716 + ... + 17732453355.

It is an arithmetic number, because the mean of its divisors is an integer number (5958103380096).

Almost surely, 2^{100011021020220} is an apocalyptic number.

100011021020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100011021020220 is an abundant number, since it is smaller than the sum of its proper divisors (185977941224388).

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

100011021020220 is a wasteful number, since it uses less digits than its factorization.

100011021020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35464901130 (or 35464901128 counting only the distinct ones).

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

Adding to 100011021020220 its reverse (22020120110001), we get a palindrome (122031141130221).

The spelling of 100011021020220 in words is "one hundred trillion, eleven billion, twenty-one million, twenty thousand, two hundred twenty".