100222021022121 has 8 divisors (see below), whose sum is σ = 148477068180960. Its totient is φ = 66814680681396.

The previous prime is 100222021022113. The next prime is 100222021022161. The reversal of 100222021022121 is 121220120222001.

It is a happy number.

100222021022121 is a `hidden beast` number, since 10 + 0 + 2 + 220 + 210 + 221 + 2 + 1 = 666.

It is not a de Polignac number, because 100222021022121 - 2³ = 100222021022113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100222021022094 and 100222021022103.

It is not an unprimeable number, because it can be changed into a prime (100222021022161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1855963352235 + ... + 1855963352288.

It is an arithmetic number, because the mean of its divisors is an integer number (18559633522620).

Almost surely, 2^{100222021022121} is an apocalyptic number.

It is an amenable number.

100222021022121 is a deficient number, since it is larger than the sum of its proper divisors (48255047158839).

100222021022121 is an equidigital number, since it uses as much as digits as its factorization.

100222021022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711926704532 (or 3711926704526 counting only the distinct ones).

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

Adding to 100222021022121 its reverse (121220120222001), we get a palindrome (221442141244122).

The spelling of 100222021022121 in words is "one hundred trillion, two hundred twenty-two billion, twenty-one million, twenty-two thousand, one hundred twenty-one".