100011221022220 has 24 divisors (see below), whose sum is σ = 210153288466800. Its totient is φ = 39979779014592.

The previous prime is 100011221022211. The next prime is 100011221022241. The reversal of 100011221022220 is 22220122110001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100011221022194 and 100011221022203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1544303955 + ... + 1544368714.

It is an arithmetic number, because the mean of its divisors is an integer number (8756387019450).

Almost surely, 2^{100011221022220} is an apocalyptic number.

100011221022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100011221022220 is an abundant number, since it is smaller than the sum of its proper divisors (110142067444580).

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

100011221022220 is a wasteful number, since it uses less digits than its factorization.

100011221022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088674297 (or 3088674295 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100011221022220 its reverse (22220122110001), we get a palindrome (122231343132221).

The spelling of 100011221022220 in words is "one hundred trillion, eleven billion, two hundred twenty-one million, twenty-two thousand, two hundred twenty".