20010220012102 has 4 divisors (see below), whose sum is σ = 30015330018156. Its totient is φ = 10005110006050.

The previous prime is 20010220012063. The next prime is 20010220012103. The reversal of 20010220012102 is 20121002201002.

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 (20010220012103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002555003024 + ... + 5002555003027.

It is an arithmetic number, because the mean of its divisors is an integer number (7503832504539).

Almost surely, 2^{20010220012102} is an apocalyptic number.

20010220012102 is a deficient number, since it is larger than the sum of its proper divisors (10005110006054).

20010220012102 is a wasteful number, since it uses less digits than its factorization.

20010220012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10005110006053.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20010220012102 its reverse (20121002201002), we get a palindrome (40131222213104).

The spelling of 20010220012102 in words is "twenty trillion, ten billion, two hundred twenty million, twelve thousand, one hundred two".