1022221202 has 16 divisors (see below), whose sum is σ = 1552613400. Its totient is φ = 504710400.

The previous prime is 1022221181. The next prime is 1022221217. The reversal of 1022221202 is 2021222201.

It can be written as a sum of positive squares in 4 ways, for example, as 867243601 + 154977601 = 29449^2 + 12449^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72074 + ... + 85082.

Almost surely, 2^1022221202 is an apocalyptic number.

1022221202 is a deficient number, since it is larger than the sum of its proper divisors (530392198).

1022221202 is a wasteful number, since it uses less digits than its factorization.

1022221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13501.

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

The square root of 1022221202 is about 31972.1942005862. The cubic root of 1022221202 is about 1007.3528701240.

Adding to 1022221202 its reverse (2021222201), we get a palindrome (3043443403).

Subtracting 1022221202 from its reverse (2021222201), we obtain a palindrome (999000999).

The spelling of 1022221202 in words is "one billion, twenty-two million, two hundred twenty-one thousand, two hundred two".