21214622202246 has 48 divisors (see below), whose sum is σ = 50381300219328. Its totient is φ = 6398205735600.

The previous prime is 21214622202227. The next prime is 21214622202317. The reversal of 21214622202246 is 64220222641212.

21214622202246 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 4 + 622 + 2 + 0 + 2 + 24 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 21214622202246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 253855276 + ... + 253938831.

It is an arithmetic number, because the mean of its divisors is an integer number (1049610421236).

Almost surely, 2^{21214622202246} is an apocalyptic number.

21214622202246 is an abundant number, since it is smaller than the sum of its proper divisors (29166678017082).

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

21214622202246 is a wasteful number, since it uses less digits than its factorization.

21214622202246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507794337 (or 507794334 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

Adding to 21214622202246 its reverse (64220222641212), we get a palindrome (85434844843458).

The spelling of 21214622202246 in words is "twenty-one trillion, two hundred fourteen billion, six hundred twenty-two million, two hundred two thousand, two hundred forty-six".