1222202022122 has 4 divisors (see below), whose sum is σ = 1833303033186. Its totient is φ = 611101011060.

The previous prime is 1222202022113. The next prime is 1222202022131. The reversal of 1222202022122 is 2212202022221.

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

It is an interprime number because it is at equal distance from previous prime (1222202022113) and next prime (1222202022131).

It can be written as a sum of positive squares in only one way, i.e., 1068144987121 + 154057035001 = 1033511^2 + 392501^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1222202022094 and 1222202022103.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305550505529 + ... + 305550505532.

Almost surely, 2^{1222202022122} is an apocalyptic number.

1222202022122 is a deficient number, since it is larger than the sum of its proper divisors (611101011064).

1222202022122 is an equidigital number, since it uses as much as digits as its factorization.

1222202022122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611101011063.

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

Adding to 1222202022122 its reverse (2212202022221), we get a palindrome (3434404044343).

Subtracting 1222202022122 from its reverse (2212202022221), we obtain a palindrome (990000000099).

The spelling of 1222202022122 in words is "one trillion, two hundred twenty-two billion, two hundred two million, twenty-two thousand, one hundred twenty-two".