1222100202002 has 4 divisors (see below), whose sum is σ = 1833150303006. Its totient is φ = 611050101000.

The previous prime is 1222100201999. The next prime is 1222100202083. The reversal of 1222100202002 is 2002020012221.

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., 696705726721 + 525394475281 = 834689^2 + 724841^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305525050499 + ... + 305525050502.

Almost surely, 2^{1222100202002} is an apocalyptic number.

1222100202002 is a deficient number, since it is larger than the sum of its proper divisors (611050101004).

1222100202002 is an equidigital number, since it uses as much as digits as its factorization.

1222100202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611050101003.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1222100202002 its reverse (2002020012221), we get a palindrome (3224120214223).

The spelling of 1222100202002 in words is "one trillion, two hundred twenty-two billion, one hundred million, two hundred two thousand, two".