3311103121220 has 24 divisors (see below), whose sum is σ = 7022161277208. Its totient is φ = 1311327968000.

The previous prime is 3311103121217. The next prime is 3311103121231. The reversal of 3311103121220 is 221213011133.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 289958556484 + 3021144564736 = 538478^2 + 1738144^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3311103121192 and 3311103121201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819577961 + ... + 819582000.

It is an arithmetic number, because the mean of its divisors is an integer number (292590053217).

Almost surely, 2^{3311103121220} is an apocalyptic number.

It is an amenable number.

3311103121220 is an abundant number, since it is smaller than the sum of its proper divisors (3711058155988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3311103121220 is a wasteful number, since it uses less digits than its factorization.

3311103121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639160071 (or 1639160069 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 3311103121220 its reverse (221213011133), we get a palindrome (3532316132353).

The spelling of 3311103121220 in words is "three trillion, three hundred eleven billion, one hundred three million, one hundred twenty-one thousand, two hundred twenty".