10221105615406 has 32 divisors (see below), whose sum is σ = 18427683225600. Its totient is φ = 4157026163136.

The previous prime is 10221105615373. The next prime is 10221105615503. The reversal of 10221105615406 is 60451650112201.

10221105615406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124929831 + ... + 125011618.

It is an arithmetic number, because the mean of its divisors is an integer number (575865100800).

Almost surely, 2^{10221105615406} is an apocalyptic number.

10221105615406 is a deficient number, since it is larger than the sum of its proper divisors (8206577610194).

10221105615406 is a wasteful number, since it uses less digits than its factorization.

10221105615406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249941608.

The product of its (nonzero) digits is 14400, while the sum is 34.

Adding to 10221105615406 its reverse (60451650112201), we get a palindrome (70672755727607).

The spelling of 10221105615406 in words is "ten trillion, two hundred twenty-one billion, one hundred five million, six hundred fifteen thousand, four hundred six".