2212122120202 has 4 divisors (see below), whose sum is σ = 3318183180306. Its totient is φ = 1106061060100.

The previous prime is 2212122120193. The next prime is 2212122120301. The reversal of 2212122120202 is 2020212212122.

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., 2054409089041 + 157713031161 = 1433321^2 + 397131^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2212122120202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553030530049 + ... + 553030530052.

Almost surely, 2^{2212122120202} is an apocalyptic number.

2212122120202 is a deficient number, since it is larger than the sum of its proper divisors (1106061060104).

2212122120202 is a wasteful number, since it uses less digits than its factorization.

2212122120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106061060103.

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

Adding to 2212122120202 its reverse (2020212212122), we get a palindrome (4232334332324).

The spelling of 2212122120202 in words is "two trillion, two hundred twelve billion, one hundred twenty-two million, one hundred twenty thousand, two hundred two".