311222140101 has 12 divisors (see below), whose sum is σ = 449547983040. Its totient is φ = 207479169000.

The previous prime is 311222140079. The next prime is 311222140109. The reversal of 311222140101 is 101041222113.

311222140101 is a `hidden beast` number, since 31 + 12 + 221 + 401 + 0 + 1 = 666.

It is not a de Polignac number, because 311222140101 - 2³¹ = 309074656453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311222140109) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1327476 + ... + 1544226.

It is an arithmetic number, because the mean of its divisors is an integer number (37462331920).

Almost surely, 2^311222140101 is an apocalyptic number.

It is an amenable number.

311222140101 is a deficient number, since it is larger than the sum of its proper divisors (138325842939).

311222140101 is a wasteful number, since it uses less digits than its factorization.

311222140101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376296 (or 376293 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 311222140101 its reverse (101041222113), we get a palindrome (412263362214).

The spelling of 311222140101 in words is "three hundred eleven billion, two hundred twenty-two million, one hundred forty thousand, one hundred one".