3102112123220 has 192 divisors, whose sum is σ = 7565351270400. Its totient is φ = 1057329123840.

The previous prime is 3102112123133. The next prime is 3102112123267. The reversal of 3102112123220 is 223212112013.

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 = 3102112123192 and 3102112123201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94620791 + ... + 94653569.

It is an arithmetic number, because the mean of its divisors is an integer number (39402871200).

Almost surely, 2^{3102112123220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3102112123220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3782675635200).

3102112123220 is an abundant number, since it is smaller than the sum of its proper divisors (4463239147180).

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

3102112123220 is a wasteful number, since it uses less digits than its factorization.

3102112123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33198 (or 33196 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 3102112123220 its reverse (223212112013), we get a palindrome (3325324235233).

The spelling of 3102112123220 in words is "three trillion, one hundred two billion, one hundred twelve million, one hundred twenty-three thousand, two hundred twenty".