21069962294 has 16 divisors (see below), whose sum is σ = 31656968640. Its totient is φ = 10517656200.

The previous prime is 21069962281. The next prime is 21069962297. The reversal of 21069962294 is 49226996012.

It is a super-2 number, since 2×21069962294² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21069962297) 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, 3720437 + ... + 3726095.

It is an arithmetic number, because the mean of its divisors is an integer number (1978560540).

Almost surely, 2^21069962294 is an apocalyptic number.

21069962294 is a deficient number, since it is larger than the sum of its proper divisors (10587006346).

21069962294 is a wasteful number, since it uses less digits than its factorization.

21069962294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8395.

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 21069962294 in words is "twenty-one billion, sixty-nine million, nine hundred sixty-two thousand, two hundred ninety-four".