1220222102222 has 4 divisors (see below), whose sum is σ = 1830333153336. Its totient is φ = 610111051110.

The previous prime is 1220222102147. The next prime is 1220222102227. The reversal of 1220222102222 is 2222012220221.

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 = 1220222102194 and 1220222102203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220222102227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305055525554 + ... + 305055525557.

It is an arithmetic number, because the mean of its divisors is an integer number (457583288334).

Almost surely, 2^{1220222102222} is an apocalyptic number.

1220222102222 is a deficient number, since it is larger than the sum of its proper divisors (610111051114).

1220222102222 is an equidigital number, since it uses as much as digits as its factorization.

1220222102222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610111051113.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1220222102222 its reverse (2222012220221), we get a palindrome (3442234322443).

The spelling of 1220222102222 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, one hundred two thousand, two hundred twenty-two".