211421401332 has 48 divisors (see below), whose sum is σ = 510864302592. Its totient is φ = 68010583680.

The previous prime is 211421401327. The next prime is 211421401333. The reversal of 211421401332 is 233104124112.

It is a super-2 number, since 2×211421401332² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211421401333) 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, 2685988 + ... + 2763579.

It is an arithmetic number, because the mean of its divisors is an integer number (10643006304).

Almost surely, 2^211421401332 is an apocalyptic number.

It is an amenable number.

211421401332 is an abundant number, since it is smaller than the sum of its proper divisors (299442901260).

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

211421401332 is a wasteful number, since it uses less digits than its factorization.

211421401332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5449688 (or 5449686 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 211421401332 its reverse (233104124112), we get a palindrome (444525525444).

The spelling of 211421401332 in words is "two hundred eleven billion, four hundred twenty-one million, four hundred one thousand, three hundred thirty-two".