210202221222 has 24 divisors (see below), whose sum is σ = 520500738576. Its totient is φ = 60057777456.

The previous prime is 210202221221. The next prime is 210202221283. The reversal of 210202221222 is 222122202012.

210202221222 is a `hidden beast` number, since 21 + 0 + 202 + 221 + 222 = 666.

It is a super-3 number, since 3×210202221222³ (a number of 35 digits) contains 333 as substring.

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 = 210202221195 and 210202221204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210202221221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 834135673 + ... + 834135924.

It is an arithmetic number, because the mean of its divisors is an integer number (21687530774).

Almost surely, 2^210202221222 is an apocalyptic number.

210202221222 is an abundant number, since it is smaller than the sum of its proper divisors (310298517354).

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

210202221222 is a wasteful number, since it uses less digits than its factorization.

210202221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668271612 (or 1668271609 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 210202221222 its reverse (222122202012), we get a palindrome (432324423234).

The spelling of 210202221222 in words is "two hundred ten billion, two hundred two million, two hundred twenty-one thousand, two hundred twenty-two".