201211010102 has 4 divisors (see below), whose sum is σ = 301816515156. Its totient is φ = 100605505050.

The previous prime is 201211010083. The next prime is 201211010149. The reversal of 201211010102 is 201010112102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 201010112102 = 2 ⋅100505056051.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50302752524 + ... + 50302752527.

It is an arithmetic number, because the mean of its divisors is an integer number (75454128789).

Almost surely, 2^201211010102 is an apocalyptic number.

201211010102 is a deficient number, since it is larger than the sum of its proper divisors (100605505054).

201211010102 is a wasteful number, since it uses less digits than its factorization.

201211010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100605505053.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201211010102 its reverse (201010112102), we get a palindrome (402221122204).

The spelling of 201211010102 in words is "two hundred one billion, two hundred eleven million, ten thousand, one hundred two".