1222811002 has 32 divisors (see below), whose sum is σ = 2188252800. Its totient is φ = 501526080.

The previous prime is 1222810993. The next prime is 1222811017. The reversal of 1222811002 is 2001182221.

It is a super-2 number, since 2×1222811002² = 2990533493224488008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12249 + ... + 50947.

It is an arithmetic number, because the mean of its divisors is an integer number (68382900).

Almost surely, 2^1222811002 is an apocalyptic number.

1222811002 is a deficient number, since it is larger than the sum of its proper divisors (965441798).

1222811002 is a wasteful number, since it uses less digits than its factorization.

1222811002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38806.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1222811002 is about 34968.7146174977. The cubic root of 1222811002 is about 1069.3497671057.

Adding to 1222811002 its reverse (2001182221), we get a palindrome (3223993223).

The spelling of 1222811002 in words is "one billion, two hundred twenty-two million, eight hundred eleven thousand, two".