22021604302346 has 64 divisors (see below), whose sum is σ = 37394320930560. Its totient is φ = 9638175951360.

The previous prime is 22021604302331. The next prime is 22021604302363. The reversal of 22021604302346 is 64320340612022.

It is a happy number.

It is a super-2 number, since 2×22021604302346² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72870710 + ... + 73172286.

It is an arithmetic number, because the mean of its divisors is an integer number (584286264540).

Almost surely, 2^{22021604302346} is an apocalyptic number.

22021604302346 is a deficient number, since it is larger than the sum of its proper divisors (15372716628214).

22021604302346 is a wasteful number, since it uses less digits than its factorization.

22021604302346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302559.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 22021604302346 its reverse (64320340612022), we get a palindrome (86341944914368).

The spelling of 22021604302346 in words is "twenty-two trillion, twenty-one billion, six hundred four million, three hundred two thousand, three hundred forty-six".