20001231223102 has 8 divisors (see below), whose sum is σ = 30027250603512. Its totient is φ = 9992147688600.

The previous prime is 20001231223087. The next prime is 20001231223109. The reversal of 20001231223102 is 20132213210002.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20001231223102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001231223109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4233958524 + ... + 4233963247.

It is an arithmetic number, because the mean of its divisors is an integer number (3753406325439).

Almost surely, 2^{20001231223102} is an apocalyptic number.

20001231223102 is a deficient number, since it is larger than the sum of its proper divisors (10026019380410).

20001231223102 is a wasteful number, since it uses less digits than its factorization.

20001231223102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8467922954.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20001231223102 its reverse (20132213210002), we get a palindrome (40133444433104).

The spelling of 20001231223102 in words is "twenty trillion, one billion, two hundred thirty-one million, two hundred twenty-three thousand, one hundred two".