21150034411012 has 48 divisors (see below), whose sum is σ = 42204915043200. Its totient is φ = 9187226030592.

The previous prime is 21150034410991. The next prime is 21150034411021. The reversal of 21150034411012 is 21011443005112.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 125361489 + ... + 125530087.

It is an arithmetic number, because the mean of its divisors is an integer number (879269063400).

Almost surely, 2^{21150034411012} is an apocalyptic number.

It is an amenable number.

21150034411012 is a deficient number, since it is larger than the sum of its proper divisors (21054880632188).

21150034411012 is a wasteful number, since it uses less digits than its factorization.

21150034411012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310540 (or 310538 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 21150034411012 its reverse (21011443005112), we get a palindrome (42161477416124).

The spelling of 21150034411012 in words is "twenty-one trillion, one hundred fifty billion, thirty-four million, four hundred eleven thousand, twelve".