22021010010002 has 16 divisors (see below), whose sum is σ = 33887142844632. Its totient is φ = 10726089079680.

The previous prime is 22021010010001. The next prime is 22021010010007. The reversal of 22021010010002 is 20001001012022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13616756827921 + 8404253182081 = 3690089^2 + 2899009^2 .

It is not an unprimeable number, because it can be changed into a prime (22021010010001) 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, 198281933 + ... + 198392960.

Almost surely, 2^{22021010010002} is an apocalyptic number.

22021010010002 is a deficient number, since it is larger than the sum of its proper divisors (11866132834630).

22021010010002 is a wasteful number, since it uses less digits than its factorization.

22021010010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396675613.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22021010010002 its reverse (20001001012022), we get a palindrome (42022011022024).

The spelling of 22021010010002 in words is "twenty-two trillion, twenty-one billion, ten million, ten thousand, two".