2221220211202 has 4 divisors (see below), whose sum is σ = 3331830316806. Its totient is φ = 1110610105600.

The previous prime is 2221220211173. The next prime is 2221220211211. The reversal of 2221220211202 is 2021120221222.

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., 2138909175001 + 82311036201 = 1462501^2 + 286899^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2221220211202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555305052799 + ... + 555305052802.

Almost surely, 2^{2221220211202} is an apocalyptic number.

2221220211202 is a deficient number, since it is larger than the sum of its proper divisors (1110610105604).

2221220211202 is a wasteful number, since it uses less digits than its factorization.

2221220211202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110610105603.

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

Adding to 2221220211202 its reverse (2021120221222), we get a palindrome (4242340432424).

The spelling of 2221220211202 in words is "two trillion, two hundred twenty-one billion, two hundred twenty million, two hundred eleven thousand, two hundred two".