10002121210220 has 24 divisors (see below), whose sum is σ = 21019752818064. Its totient is φ = 3997934526656.

The previous prime is 10002121210183. The next prime is 10002121210283. The reversal of 10002121210220 is 2201212120001.

It is a junction number, because it is equal to n+sod(n) for n = 10002121210195 and 10002121210204.

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, 182094194 + ... + 182149113.

It is an arithmetic number, because the mean of its divisors is an integer number (875823034086).

Almost surely, 2^{10002121210220} is an apocalyptic number.

10002121210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10002121210220 is an abundant number, since it is smaller than the sum of its proper divisors (11017631607844).

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

10002121210220 is a wasteful number, since it uses less digits than its factorization.

10002121210220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364244689 (or 364244687 counting only the distinct ones).

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

Adding to 10002121210220 its reverse (2201212120001), we get a palindrome (12203333330221).

The spelling of 10002121210220 in words is "ten trillion, two billion, one hundred twenty-one million, two hundred ten thousand, two hundred twenty".