20100002012102 has 4 divisors (see below), whose sum is σ = 30150003018156. Its totient is φ = 10050001006050.

The previous prime is 20100002012089. The next prime is 20100002012107. The reversal of 20100002012102 is 20121020000102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100002012107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5025000503024 + ... + 5025000503027.

It is an arithmetic number, because the mean of its divisors is an integer number (7537500754539).

Almost surely, 2^{20100002012102} is an apocalyptic number.

20100002012102 is a deficient number, since it is larger than the sum of its proper divisors (10050001006054).

20100002012102 is a wasteful number, since it uses less digits than its factorization.

20100002012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10050001006053.

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

Adding to 20100002012102 its reverse (20121020000102), we get a palindrome (40221022012204).

The spelling of 20100002012102 in words is "twenty trillion, one hundred billion, two million, twelve thousand, one hundred two".