1222153331236 has 6 divisors (see below), whose sum is σ = 2138768329670. Its totient is φ = 611076665616.

The previous prime is 1222153331233. The next prime is 1222153331291. The reversal of 1222153331236 is 6321333512221.

It can be written as a sum of positive squares in only one way, i.e., 693705752100 + 528447579136 = 832890^2 + 726944^2 .

It is not an unprimeable number, because it can be changed into a prime (1222153331233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152769166401 + ... + 152769166408.

Almost surely, 2^{1222153331236} is an apocalyptic number.

It is an amenable number.

1222153331236 is a deficient number, since it is larger than the sum of its proper divisors (916614998434).

1222153331236 is a wasteful number, since it uses less digits than its factorization.

1222153331236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305538332813 (or 305538332811 counting only the distinct ones).

The product of its digits is 38880, while the sum is 34.

Adding to 1222153331236 its reverse (6321333512221), we get a palindrome (7543486843457).

The spelling of 1222153331236 in words is "one trillion, two hundred twenty-two billion, one hundred fifty-three million, three hundred thirty-one thousand, two hundred thirty-six".