201211121102 has 4 divisors (see below), whose sum is σ = 301816681656. Its totient is φ = 100605560550.

The previous prime is 201211121081. The next prime is 201211121113. The reversal of 201211121102 is 201121112102.

It is a semiprime because it is the product of two primes.

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, 50302780274 + ... + 50302780277.

It is an arithmetic number, because the mean of its divisors is an integer number (75454170414).

Almost surely, 2^201211121102 is an apocalyptic number.

201211121102 is a deficient number, since it is larger than the sum of its proper divisors (100605560554).

201211121102 is a wasteful number, since it uses less digits than its factorization.

201211121102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100605560553.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201211121102 its reverse (201121112102), we get a palindrome (402332233204).

The spelling of 201211121102 in words is "two hundred one billion, two hundred eleven million, one hundred twenty-one thousand, one hundred two".