20123312222000 has 160 divisors (see below), whose sum is σ = 54208041713280. Its totient is φ = 7173933849600.

The previous prime is 20123312221997. The next prime is 20123312222003. The reversal of 20123312222000 is 22221332102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20123312221997) and next prime (20123312222003).

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

It is not an unprimeable number, because it can be changed into a prime (20123312222003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12590372 + ... + 14098371.

It is an arithmetic number, because the mean of its divisors is an integer number (338800260708).

Almost surely, 2^{20123312222000} is an apocalyptic number.

20123312222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123312222000 is an abundant number, since it is smaller than the sum of its proper divisors (34084729491280).

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

20123312222000 is a wasteful number, since it uses less digits than its factorization.

20123312222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26688808 (or 26688792 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20123312222000 its reverse (22221332102), we get a palindrome (20145533554102).

The spelling of 20123312222000 in words is "twenty trillion, one hundred twenty-three billion, three hundred twelve million, two hundred twenty-two thousand".