20001222100102 has 16 divisors (see below), whose sum is σ = 30186215734752. Its totient is φ = 9939315185280.

The previous prime is 20001222100099. The next prime is 20001222100187. The reversal of 20001222100102 is 20100122210002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41006373 + ... + 41491264.

It is an arithmetic number, because the mean of its divisors is an integer number (1886638483422).

Almost surely, 2^{20001222100102} is an apocalyptic number.

20001222100102 is a deficient number, since it is larger than the sum of its proper divisors (10184993634650).

20001222100102 is a wasteful number, since it uses less digits than its factorization.

20001222100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82498383.

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

Adding to 20001222100102 its reverse (20100122210002), we get a palindrome (40101344310104).

The spelling of 20001222100102 in words is "twenty trillion, one billion, two hundred twenty-two million, one hundred thousand, one hundred two".