100212220022121 has 16 divisors (see below), whose sum is σ = 148485954165120. Its totient is φ = 66797613988560.

The previous prime is 100212220022093. The next prime is 100212220022207. The reversal of 100212220022121 is 121220022212001.

It is a happy number.

100212220022121 is a `hidden beast` number, since 10 + 0 + 212 + 2 + 200 + 221 + 21 = 666.

It is not a de Polignac number, because 100212220022121 - 2⁷ = 100212220021993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100212220022094 and 100212220022103.

It is not an unprimeable number, because it can be changed into a prime (100212220022221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292400370 + ... + 292742891.

It is an arithmetic number, because the mean of its divisors is an integer number (9280372135320).

Almost surely, 2^{100212220022121} is an apocalyptic number.

It is an amenable number.

100212220022121 is a deficient number, since it is larger than the sum of its proper divisors (48273734142999).

100212220022121 is an equidigital number, since it uses as much as digits as its factorization.

100212220022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585149613 (or 585149607 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 100212220022121 its reverse (121220022212001), we get a palindrome (221432242234122).

The spelling of 100212220022121 in words is "one hundred trillion, two hundred twelve billion, two hundred twenty million, twenty-two thousand, one hundred twenty-one".