202111122132 has 48 divisors (see below), whose sum is σ = 524625635520. Its totient is φ = 67288880736.

The previous prime is 202111122107. The next prime is 202111122137. The reversal of 202111122132 is 231221111202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202111122137) 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, 1042123 + ... + 1220754.

It is an arithmetic number, because the mean of its divisors is an integer number (10929700740).

Almost surely, 2^202111122132 is an apocalyptic number.

It is an amenable number.

202111122132 is an abundant number, since it is smaller than the sum of its proper divisors (322514513388).

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

202111122132 is a wasteful number, since it uses less digits than its factorization.

202111122132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2263717 (or 2263709 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 202111122132 its reverse (231221111202), we get a palindrome (433332233334).

The spelling of 202111122132 in words is "two hundred two billion, one hundred eleven million, one hundred twenty-two thousand, one hundred thirty-two".