20010100001200 has 30 divisors (see below), whose sum is σ = 48074265253844. Its totient is φ = 8004040000320.

The previous prime is 20010100001179. The next prime is 20010100001267. The reversal of 20010100001200 is 210000101002.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25012624602 + ... + 25012625401.

Almost surely, 2^{20010100001200} is an apocalyptic number.

20010100001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010100001200 is an abundant number, since it is smaller than the sum of its proper divisors (28064165252644).

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

20010100001200 is a wasteful number, since it uses less digits than its factorization.

20010100001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50025250021 (or 50025250010 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20010100001200 its reverse (210000101002), we get a palindrome (20220100102202).

The spelling of 20010100001200 in words is "twenty trillion, ten billion, one hundred million, one thousand, two hundred".