100011221020220 has 12 divisors (see below), whose sum is σ = 210023564142504. Its totient is φ = 40004488408080.

The previous prime is 100011221020199. The next prime is 100011221020237. The reversal of 100011221020220 is 22020122110001.

It is a junction number, because it is equal to n+sod(n) for n = 100011221020195 and 100011221020204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500280525486 + ... + 2500280525525.

It is an arithmetic number, because the mean of its divisors is an integer number (17501963678542).

Almost surely, 2^{100011221020220} is an apocalyptic number.

100011221020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100011221020220 is an abundant number, since it is smaller than the sum of its proper divisors (110012343122284).

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

100011221020220 is a wasteful number, since it uses less digits than its factorization.

100011221020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000561051020 (or 5000561051018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100011221020220 its reverse (22020122110001), we get a palindrome (122031343130221).

The spelling of 100011221020220 in words is "one hundred trillion, eleven billion, two hundred twenty-one million, twenty thousand, two hundred twenty".