1210022222 has 4 divisors (see below), whose sum is σ = 1815033336. Its totient is φ = 605011110.

The previous prime is 1210022213. The next prime is 1210022321. The reversal of 1210022222 is 2222200121.

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

1210022222 is a modest number, since divided by 22222 gives 12100 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1210022197 and 1210022206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302505554 + ... + 302505557.

It is an arithmetic number, because the mean of its divisors is an integer number (453758334).

Almost surely, 2^1210022222 is an apocalyptic number.

1210022222 is a deficient number, since it is larger than the sum of its proper divisors (605011114).

1210022222 is an equidigital number, since it uses as much as digits as its factorization.

1210022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605011113.

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

The square root of 1210022222 is about 34785.3736791773. The cubic root of 1210022222 is about 1065.6087600911.

Adding to 1210022222 its reverse (2222200121), we get a palindrome (3432222343).

The spelling of 1210022222 in words is "one billion, two hundred ten million, twenty-two thousand, two hundred twenty-two".