210001022222 has 4 divisors (see below), whose sum is σ = 315001533336. Its totient is φ = 105000511110.

The previous prime is 210001022207. The next prime is 210001022227. The reversal of 210001022222 is 222220100012.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 210001022197 and 210001022206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210001022227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52500255554 + ... + 52500255557.

It is an arithmetic number, because the mean of its divisors is an integer number (78750383334).

Almost surely, 2^210001022222 is an apocalyptic number.

210001022222 is a deficient number, since it is larger than the sum of its proper divisors (105000511114).

210001022222 is a wasteful number, since it uses less digits than its factorization.

210001022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105000511113.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 210001022222 its reverse (222220100012), we get a palindrome (432221122234).

The spelling of 210001022222 in words is "two hundred ten billion, one million, twenty-two thousand, two hundred twenty-two".