21341211112 has 32 divisors (see below), whose sum is σ = 44966436480. Its totient is φ = 9421536960.

The previous prime is 21341211083. The next prime is 21341211131. The reversal of 21341211112 is 21111214312.

It is a self number, because there is not a number n which added to its sum of digits gives 21341211112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4458564 + ... + 4463347.

It is an arithmetic number, because the mean of its divisors is an integer number (1405201140).

Almost surely, 2^21341211112 is an apocalyptic number.

It is an amenable number.

21341211112 is an abundant number, since it is smaller than the sum of its proper divisors (23625225368).

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

21341211112 is a wasteful number, since it uses less digits than its factorization.

21341211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8921953 (or 8921949 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

Adding to 21341211112 its reverse (21111214312), we get a palindrome (42452425424).

The spelling of 21341211112 in words is "twenty-one billion, three hundred forty-one million, two hundred eleven thousand, one hundred twelve".