20010002100212 has 24 divisors (see below), whose sum is σ = 35097372404640. Its totient is φ = 9982187379360.

The previous prime is 20010002100083. The next prime is 20010002100217. The reversal of 20010002100212 is 21200120001002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20010002100193 and 20010002100202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010002100217) 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, 12743162 + ... + 14227022.

It is an arithmetic number, because the mean of its divisors is an integer number (1462390516860).

Almost surely, 2^{20010002100212} is an apocalyptic number.

It is an amenable number.

20010002100212 is a deficient number, since it is larger than the sum of its proper divisors (15087370304428).

20010002100212 is a wasteful number, since it uses less digits than its factorization.

20010002100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491551 (or 1491549 counting only the distinct ones).

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

Adding to 20010002100212 its reverse (21200120001002), we get a palindrome (41210122101214).

The spelling of 20010002100212 in words is "twenty trillion, ten billion, two million, one hundred thousand, two hundred twelve".