201121211132 has 48 divisors (see below), whose sum is σ = 374975973120. Its totient is φ = 94187795328.

The previous prime is 201121211131. The next prime is 201121211219. The reversal of 201121211132 is 231112121102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201121211132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121211131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 825803 + ... + 1041245.

It is an arithmetic number, because the mean of its divisors is an integer number (7811999440).

Almost surely, 2^201121211132 is an apocalyptic number.

It is an amenable number.

201121211132 is a deficient number, since it is larger than the sum of its proper divisors (173854761988).

201121211132 is a wasteful number, since it uses less digits than its factorization.

201121211132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215682 (or 215680 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 201121211132 its reverse (231112121102), we get a palindrome (432233332234).

The spelling of 201121211132 in words is "two hundred one billion, one hundred twenty-one million, two hundred eleven thousand, one hundred thirty-two".