10421312221044 has 72 divisors (see below), whose sum is σ = 26438302800000. Its totient is φ = 3461192406144.

The previous prime is 10421312221037. The next prime is 10421312221049. The reversal of 10421312221044 is 44012221312401.

10421312221044 is a `hidden beast` number, since 1 + 0 + 421 + 3 + 1 + 22 + 210 + 4 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 10421312220999 and 10421312221017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421312221049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11775957 + ... + 12629955.

It is an arithmetic number, because the mean of its divisors is an integer number (367198650000).

Almost surely, 2^{10421312221044} is an apocalyptic number.

It is an amenable number.

10421312221044 is an abundant number, since it is smaller than the sum of its proper divisors (16016990578956).

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

10421312221044 is a wasteful number, since it uses less digits than its factorization.

10421312221044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855237 (or 855232 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 10421312221044 its reverse (44012221312401), we get a palindrome (54433533533445).

The spelling of 10421312221044 in words is "ten trillion, four hundred twenty-one billion, three hundred twelve million, two hundred twenty-one thousand, forty-four".