2011021211232 has 144 divisors (see below), whose sum is σ = 6453865388880. Its totient is φ = 588386534400.

The previous prime is 2011021211207. The next prime is 2011021211263. The reversal of 2011021211232 is 2321121201102.

2011021211232 is a `hidden beast` number, since 201 + 1 + 0 + 21 + 211 + 232 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10852819 + ... + 11036562.

It is an arithmetic number, because the mean of its divisors is an integer number (44818509645).

Almost surely, 2^{2011021211232} is an apocalyptic number.

2011021211232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2011021211232 is an abundant number, since it is smaller than the sum of its proper divisors (4442844177648).

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

2011021211232 is a wasteful number, since it uses less digits than its factorization.

2011021211232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21889437 (or 21889426 counting only the distinct ones).

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

Adding to 2011021211232 its reverse (2321121201102), we get a palindrome (4332142412334).

The spelling of 2011021211232 in words is "two trillion, eleven billion, twenty-one million, two hundred eleven thousand, two hundred thirty-two".