21041446102 has 4 divisors (see below), whose sum is σ = 31562169156. Its totient is φ = 10520723050.

The previous prime is 21041446099. The next prime is 21041446133. The reversal of 21041446102 is 20164414012.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5260361524 + ... + 5260361527.

It is an arithmetic number, because the mean of its divisors is an integer number (7890542289).

Almost surely, 2^21041446102 is an apocalyptic number.

21041446102 is a deficient number, since it is larger than the sum of its proper divisors (10520723054).

21041446102 is a wasteful number, since it uses less digits than its factorization.

21041446102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10520723053.

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 21041446102 in words is "twenty-one billion, forty-one million, four hundred forty-six thousand, one hundred two".