11211532021400 has 24 divisors (see below), whose sum is σ = 26066811950220. Its totient is φ = 4484612808480.

The previous prime is 11211532021373. The next prime is 11211532021477. The reversal of 11211532021400 is 412023511211.

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 5 ways as a sum of consecutive naturals, for example, 28028829854 + ... + 28028830253.

Almost surely, 2^{11211532021400} is an apocalyptic number.

11211532021400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211532021400 is an abundant number, since it is smaller than the sum of its proper divisors (14855279928820).

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

11211532021400 is a wasteful number, since it uses less digits than its factorization.

11211532021400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56057660123 (or 56057660114 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 11211532021400 its reverse (412023511211), we get a palindrome (11623555532611).

The spelling of 11211532021400 in words is "eleven trillion, two hundred eleven billion, five hundred thirty-two million, twenty-one thousand, four hundred".