311221322201101 has 8 divisors (see below), whose sum is σ = 335161597284864. Its totient is φ = 287281071885360.

The previous prime is 311221322201057. The next prime is 311221322201107. The reversal of 311221322201101 is 101102223122113.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 311221322201101 - 2⁷ = 311221322200973 is a prime.

It is a super-2 number, since 2×311221322201101² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311221322201107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26169756 + ... + 36156586.

It is an arithmetic number, because the mean of its divisors is an integer number (41895199660608).

Almost surely, 2^{311221322201101} is an apocalyptic number.

It is an amenable number.

311221322201101 is a deficient number, since it is larger than the sum of its proper divisors (23940275083763).

311221322201101 is a wasteful number, since it uses less digits than its factorization.

311221322201101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12384011.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 311221322201101 its reverse (101102223122113), we get a palindrome (412323545323214).

The spelling of 311221322201101 in words is "three hundred eleven trillion, two hundred twenty-one billion, three hundred twenty-two million, two hundred one thousand, one hundred one".