21012022110202 has 8 divisors (see below), whose sum is σ = 31897768504896. Its totient is φ = 10379432608572.

The previous prime is 21012022110137. The next prime is 21012022110223. The reversal of 21012022110202 is 20201122021012.

It is a happy number.

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

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, 63289223058 + ... + 63289223389.

It is an arithmetic number, because the mean of its divisors is an integer number (3987221063112).

Almost surely, 2^{21012022110202} is an apocalyptic number.

21012022110202 is a deficient number, since it is larger than the sum of its proper divisors (10885746394694).

21012022110202 is a wasteful number, since it uses less digits than its factorization.

21012022110202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126578446532.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21012022110202 its reverse (20201122021012), we get a palindrome (41213144131214).

The spelling of 21012022110202 in words is "twenty-one trillion, twelve billion, twenty-two million, one hundred ten thousand, two hundred two".