1222122021202 has 4 divisors (see below), whose sum is σ = 1833183031806. Its totient is φ = 611061010600.

The previous prime is 1222122021181. The next prime is 1222122021209. The reversal of 1222122021202 is 2021202212221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1173493391841 + 48628629361 = 1083279^2 + 220519^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1222122021202.

It is not an unprimeable number, because it can be changed into a prime (1222122021209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305530505299 + ... + 305530505302.

Almost surely, 2^{1222122021202} is an apocalyptic number.

1222122021202 is a deficient number, since it is larger than the sum of its proper divisors (611061010604).

1222122021202 is an equidigital number, since it uses as much as digits as its factorization.

1222122021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611061010603.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1222122021202 its reverse (2021202212221), we get a palindrome (3243324233423).

The spelling of 1222122021202 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, twenty-one thousand, two hundred two".