13121021100222 has 24 divisors (see below), whose sum is σ = 32490147486576. Its totient is φ = 3748863171456.

The previous prime is 13121021100211. The next prime is 13121021100269. The reversal of 13121021100222 is 22200112012131.

13121021100222 is a `hidden beast` number, since 1 + 312 + 10 + 21 + 100 + 222 = 666.

It is a super-2 number, since 2×13121021100222² (a number of 27 digits) contains 22 as substring.

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 = 13121021100195 and 13121021100204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52067543923 + ... + 52067544174.

It is an arithmetic number, because the mean of its divisors is an integer number (1353756145274).

Almost surely, 2^{13121021100222} is an apocalyptic number.

13121021100222 is an abundant number, since it is smaller than the sum of its proper divisors (19369126386354).

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

13121021100222 is a wasteful number, since it uses less digits than its factorization.

13121021100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104135088112 (or 104135088109 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 13121021100222 its reverse (22200112012131), we get a palindrome (35321133112353).

The spelling of 13121021100222 in words is "thirteen trillion, one hundred twenty-one billion, twenty-one million, one hundred thousand, two hundred twenty-two".