21163132022246 has 8 divisors (see below), whose sum is σ = 31754193914784. Its totient is φ = 10578400717320.

The previous prime is 21163132022239. The next prime is 21163132022251. The reversal of 21163132022246 is 64222023136112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1582638545 + ... + 1582651916.

It is an arithmetic number, because the mean of its divisors is an integer number (3969274239348).

Almost surely, 2^{21163132022246} is an apocalyptic number.

21163132022246 is a deficient number, since it is larger than the sum of its proper divisors (10591061892538).

21163132022246 is a wasteful number, since it uses less digits than its factorization.

21163132022246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3165293806.

The product of its (nonzero) digits is 41472, while the sum is 35.

Adding to 21163132022246 its reverse (64222023136112), we get a palindrome (85385155158358).

The spelling of 21163132022246 in words is "twenty-one trillion, one hundred sixty-three billion, one hundred thirty-two million, twenty-two thousand, two hundred forty-six".