21211134000 has 160 divisors (see below), whose sum is σ = 78154093056. Its totient is φ = 4848249600.

The previous prime is 21211133989. The next prime is 21211134011. The reversal of 21211134000 is 43111212.

It is an interprime number because it is at equal distance from previous prime (21211133989) and next prime (21211134011).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210514 + ... + 294513.

Almost surely, 2^21211134000 is an apocalyptic number.

21211134000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21211134000 is an abundant number, since it is smaller than the sum of its proper divisors (56942959056).

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

21211134000 is a wasteful number, since it uses less digits than its factorization.

21211134000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505060 (or 505044 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21211134000 its reverse (43111212), we get a palindrome (21254245212).

The spelling of 21211134000 in words is "twenty-one billion, two hundred eleven million, one hundred thirty-four thousand".