100121021222022 has 64 divisors (see below), whose sum is σ = 236520043430400. Its totient is φ = 31304123330400.

The previous prime is 100121021222011. The next prime is 100121021222029. The reversal of 100121021222022 is 220222120121001.

It is a happy number.

100121021222022 is a `hidden beast` number, since 1 + 0 + 0 + 1 + 210 + 212 + 220 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 100121021221986 and 100121021222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100121021222029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 482984698 + ... + 483191949.

It is an arithmetic number, because the mean of its divisors is an integer number (3695625678600).

Almost surely, 2^{100121021222022} is an apocalyptic number.

100121021222022 is an abundant number, since it is smaller than the sum of its proper divisors (136399022208378).

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

100121021222022 is a wasteful number, since it uses less digits than its factorization.

100121021222022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966176778 (or 966176772 counting only the distinct ones).

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

Adding to 100121021222022 its reverse (220222120121001), we get a palindrome (320343141343023).

The spelling of 100121021222022 in words is "one hundred trillion, one hundred twenty-one billion, twenty-one million, two hundred twenty-two thousand, twenty-two".