10021331294 has 16 divisors (see below), whose sum is σ = 16270486848. Its totient is φ = 4601749152.

The previous prime is 10021331249. The next prime is 10021331297. The reversal of 10021331294 is 49213312001.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021331297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973142 + ... + 983385.

It is an arithmetic number, because the mean of its divisors is an integer number (1016905428).

Almost surely, 2^10021331294 is an apocalyptic number.

10021331294 is a deficient number, since it is larger than the sum of its proper divisors (6249155554).

10021331294 is a wasteful number, since it uses less digits than its factorization.

10021331294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956739.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 10021331294 its reverse (49213312001), we get a palindrome (59234643295).

The spelling of 10021331294 in words is "ten billion, twenty-one million, three hundred thirty-one thousand, two hundred ninety-four".