2221222021202 has 4 divisors (see below), whose sum is σ = 3331833031806. Its totient is φ = 1110611010600.

The previous prime is 2221222021169. The next prime is 2221222021223. The reversal of 2221222021202 is 2021202221222.

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., 2037644906521 + 183577114681 = 1427461^2 + 428459^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555305505299 + ... + 555305505302.

Almost surely, 2^{2221222021202} is an apocalyptic number.

2221222021202 is a deficient number, since it is larger than the sum of its proper divisors (1110611010604).

2221222021202 is a wasteful number, since it uses less digits than its factorization.

2221222021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110611010603.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2221222021202 its reverse (2021202221222), we get a palindrome (4242424242424).

The spelling of 2221222021202 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-two million, twenty-one thousand, two hundred two".