21010010313222 has 72 divisors (see below), whose sum is σ = 54080478238176. Its totient is φ = 5875139650464.

The previous prime is 21010010313211. The next prime is 21010010313223. The reversal of 21010010313222 is 22231301001012.

21010010313222 is a `hidden beast` number, since 21 + 0 + 100 + 10 + 313 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 21010010313195 and 21010010313204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21010010313223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 253372093 + ... + 253455000.

It is an arithmetic number, because the mean of its divisors is an integer number (751117753308).

Almost surely, 2^{21010010313222} is an apocalyptic number.

21010010313222 is an abundant number, since it is smaller than the sum of its proper divisors (33070467924954).

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

21010010313222 is a wasteful number, since it uses less digits than its factorization.

21010010313222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506827162 (or 506827152 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21010010313222 its reverse (22231301001012), we get a palindrome (43241311314234).

The spelling of 21010010313222 in words is "twenty-one trillion, ten billion, ten million, three hundred thirteen thousand, two hundred twenty-two".