1222021220222 has 32 divisors (see below), whose sum is σ = 2093249599488. Its totient is φ = 529974900000.

The previous prime is 1222021220221. The next prime is 1222021220257. The reversal of 1222021220222 is 2220221202221.

It is a junction number, because it is equal to n+sod(n) for n = 1222021220194 and 1222021220203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222021220221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12570029 + ... + 12666872.

It is an arithmetic number, because the mean of its divisors is an integer number (65414049984).

Almost surely, 2^{1222021220222} is an apocalyptic number.

1222021220222 is a deficient number, since it is larger than the sum of its proper divisors (871228379266).

1222021220222 is a wasteful number, since it uses less digits than its factorization.

1222021220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25237016.

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

Adding to 1222021220222 its reverse (2220221202221), we get a palindrome (3442242422443).

The spelling of 1222021220222 in words is "one trillion, two hundred twenty-two billion, twenty-one million, two hundred twenty thousand, two hundred twenty-two".