311021020122202 has 8 divisors (see below), whose sum is σ = 502418570966676. Its totient is φ = 143548163133312.

The previous prime is 311021020122037. The next prime is 311021020122209. The reversal of 311021020122202 is 202221020120113.

It can be written as a sum of positive squares in 2 ways, for example, as 306258015052441 + 4763005069761 = 17500229^2 + 2182431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 311021020122202.

It is not an unprimeable number, because it can be changed into a prime (311021020122209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5981173463863 + ... + 5981173463914.

Almost surely, 2^{311021020122202} is an apocalyptic number.

311021020122202 is a deficient number, since it is larger than the sum of its proper divisors (191397550844474).

311021020122202 is a wasteful number, since it uses less digits than its factorization.

311021020122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11962346927792.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 311021020122202 its reverse (202221020120113), we get a palindrome (513242040242315).

The spelling of 311021020122202 in words is "three hundred eleven trillion, twenty-one billion, twenty million, one hundred twenty-two thousand, two hundred two".