100121010222020 has 48 divisors (see below), whose sum is σ = 210893674252800. Its totient is φ = 39926589500160.

The previous prime is 100121010222017. The next prime is 100121010222071. The reversal of 100121010222020 is 20222010121001.

It is a junction number, because it is equal to n+sod(n) for n = 100121010221986 and 100121010222004.

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, 398193101 + ... + 398444459.

It is an arithmetic number, because the mean of its divisors is an integer number (4393618213600).

Almost surely, 2^{100121010222020} is an apocalyptic number.

100121010222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100121010222020 is an abundant number, since it is smaller than the sum of its proper divisors (110772664030780).

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

100121010222020 is a wasteful number, since it uses less digits than its factorization.

100121010222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311868 (or 311866 counting only the distinct ones).

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

Adding to 100121010222020 its reverse (20222010121001), we get a palindrome (120343020343021).

The spelling of 100121010222020 in words is "one hundred trillion, one hundred twenty-one billion, ten million, two hundred twenty-two thousand, twenty".