20010001208 has 16 divisors (see below), whose sum is σ = 37526404560. Its totient is φ = 10002960000.

The previous prime is 20010001201. The next prime is 20010001267. The reversal of 20010001208 is 80210001002.

It is a super-2 number, since 2×20010001208² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20010001192 and 20010001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010001201) 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, 212993 + ... + 292208.

It is an arithmetic number, because the mean of its divisors is an integer number (2345400285).

Almost surely, 2^20010001208 is an apocalyptic number.

It is an amenable number.

20010001208 is a deficient number, since it is larger than the sum of its proper divisors (17516403352).

20010001208 is a wasteful number, since it uses less digits than its factorization.

20010001208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510158 (or 510154 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The spelling of 20010001208 in words is "twenty billion, ten million, one thousand, two hundred eight".