20001212102 has 16 divisors (see below), whose sum is σ = 30072440832. Its totient is φ = 9977090760.

The previous prime is 20001212029. The next prime is 20001212107. The reversal of 20001212102 is 20121210002.

It is a happy number.

20001212102 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001212107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1866203 + ... + 1876889.

It is an arithmetic number, because the mean of its divisors is an integer number (1879527552).

Almost surely, 2^20001212102 is an apocalyptic number.

20001212102 is a deficient number, since it is larger than the sum of its proper divisors (10071228730).

20001212102 is a wasteful number, since it uses less digits than its factorization.

20001212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12803.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20001212102 its reverse (20121210002), we get a palindrome (40122422104).

The spelling of 20001212102 in words is "twenty billion, one million, two hundred twelve thousand, one hundred two".