121222220000022 has 24 divisors (see below), whose sum is σ = 262648402904160. Its totient is φ = 40407366732720.

The previous prime is 121222220000009. The next prime is 121222220000047. The reversal of 121222220000022 is 220000022222121.

121222220000022 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

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, 19697104 + ... + 25108172.

It is an arithmetic number, because the mean of its divisors is an integer number (10943683454340).

Almost surely, 2^{121222220000022} is an apocalyptic number.

121222220000022 is an abundant number, since it is smaller than the sum of its proper divisors (141426182904138).

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

121222220000022 is a wasteful number, since it uses less digits than its factorization.

121222220000022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6655668 (or 6655665 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 121222220000022 its reverse (220000022222121), we get a palindrome (341222242222143).

The spelling of 121222220000022 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two hundred twenty million, twenty-two", and thus it is an aban number.