20001200102 has 32 divisors (see below), whose sum is σ = 32936585472. Its totient is φ = 9052377984.

The previous prime is 20001200099. The next prime is 20001200119. The reversal of 20001200102 is 20100210002.

It is a self number, because there is not a number n which added to its sum of digits gives 20001200102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4844363 + ... + 4848489.

It is an arithmetic number, because the mean of its divisors is an integer number (1029268296).

Almost surely, 2^20001200102 is an apocalyptic number.

20001200102 is a deficient number, since it is larger than the sum of its proper divisors (12935385370).

20001200102 is a wasteful number, since it uses less digits than its factorization.

20001200102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7712.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20001200102 its reverse (20100210002), we get a palindrome (40101410104).

The spelling of 20001200102 in words is "twenty billion, one million, two hundred thousand, one hundred two".