20120220310004 has 12 divisors (see below), whose sum is σ = 35533416603300. Its totient is φ = 9967815566208.

The previous prime is 20120220309997. The next prime is 20120220310097. The reversal of 20120220310004 is 40001302202102.

It can be written as a sum of positive squares in 2 ways, for example, as 9948649605904 + 10171570704100 = 3154148^2 + 3189290^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23073646709 + ... + 23073647580.

It is an arithmetic number, because the mean of its divisors is an integer number (2961118050275).

Almost surely, 2^{20120220310004} is an apocalyptic number.

It is an amenable number.

20120220310004 is a deficient number, since it is larger than the sum of its proper divisors (15413196293296).

20120220310004 is a wasteful number, since it uses less digits than its factorization.

20120220310004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46147294402 (or 46147294400 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20120220310004 its reverse (40001302202102), we get a palindrome (60121522512106).

The spelling of 20120220310004 in words is "twenty trillion, one hundred twenty billion, two hundred twenty million, three hundred ten thousand, four".