201211111200102 has 16 divisors (see below), whose sum is σ = 402659920130160. Its totient is φ = 67030754111712.

The previous prime is 201211111200097. The next prime is 201211111200137. The reversal of 201211111200102 is 201002111112102.

It is a happy number.

It is a super-2 number, since 2×201211111200102² (a number of 29 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 9904061077 + ... + 9904081392.

It is an arithmetic number, because the mean of its divisors is an integer number (25166245008135).

Almost surely, 2^{201211111200102} is an apocalyptic number.

201211111200102 is an abundant number, since it is smaller than the sum of its proper divisors (201448808930058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201211111200102 is a wasteful number, since it uses less digits than its factorization.

201211111200102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19808144167.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201211111200102 its reverse (201002111112102), we get a palindrome (402213222312204).

The spelling of 201211111200102 in words is "two hundred one trillion, two hundred eleven billion, one hundred eleven million, two hundred thousand, one hundred two".