20121200212102 has 32 divisors (see below), whose sum is σ = 33468135250464. Its totient is φ = 8995320787200.

The previous prime is 20121200212081. The next prime is 20121200212111.

It is a happy number.

20121200212102 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15753738 + ... + 16983010.

It is an arithmetic number, because the mean of its divisors is an integer number (1045879226577).

Almost surely, 2^{20121200212102} is an apocalyptic number.

20121200212102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20121200212102 is a deficient number, since it is larger than the sum of its proper divisors (13346935038362).

20121200212102 is a wasteful number, since it uses less digits than its factorization.

20121200212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241544.

The product of its (nonzero) digits is 64, while the sum is 16.

It can be divided in two parts, 20121200 and 212102, that added together give a palindrome (20333302).

The spelling of 20121200212102 in words is "twenty trillion, one hundred twenty-one billion, two hundred million, two hundred twelve thousand, one hundred two".