1220202201222 has 12 divisors (see below), whose sum is σ = 2643771436020. Its totient is φ = 406734067068.

The previous prime is 1220202201209. The next prime is 1220202201319. The reversal of 1220202201222 is 2221022020221.

1220202201222 is a `hidden beast` number, since 1 + 220 + 2 + 0 + 220 + 1 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 67789011179 = 1220202201222 / (1 + 2 + 2 + 0 + 2 + 0 + 2 + 2 + 0 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1220202201195 and 1220202201204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33894505572 + ... + 33894505607.

It is an arithmetic number, because the mean of its divisors is an integer number (220314286335).

Almost surely, 2^{1220202201222} is an apocalyptic number.

1220202201222 is an abundant number, since it is smaller than the sum of its proper divisors (1423569234798).

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

1220202201222 is a wasteful number, since it uses less digits than its factorization.

1220202201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67789011187 (or 67789011184 counting only the distinct ones).

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

Adding to 1220202201222 its reverse (2221022020221), we get a palindrome (3441224221443).

The spelling of 1220202201222 in words is "one trillion, two hundred twenty billion, two hundred two million, two hundred one thousand, two hundred twenty-two".