201211122102 has 16 divisors (see below), whose sum is σ = 423602362560. Its totient is φ = 63540354312.

The previous prime is 201211122061. The next prime is 201211122107. The reversal of 201211122102 is 201221112102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211122107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 882504808 + ... + 882505035.

It is an arithmetic number, because the mean of its divisors is an integer number (26475147660).

Almost surely, 2^201211122102 is an apocalyptic number.

201211122102 is an abundant number, since it is smaller than the sum of its proper divisors (222391240458).

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

201211122102 is a wasteful number, since it uses less digits than its factorization.

201211122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1765009867.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201211122102 its reverse (201221112102), we get a palindrome (402432234204).

The spelling of 201211122102 in words is "two hundred one billion, two hundred eleven million, one hundred twenty-two thousand, one hundred two".