1021222022 has 4 divisors (see below), whose sum is σ = 1531833036. Its totient is φ = 510611010.

The previous prime is 1021222021. The next prime is 1021222067. The reversal of 1021222022 is 2202221201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2202221201 = 19 ⋅115906379.

It is a junction number, because it is equal to n+sod(n) for n = 1021221988 and 1021222006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255305504 + ... + 255305507.

It is an arithmetic number, because the mean of its divisors is an integer number (382958259).

Almost surely, 2^1021222022 is an apocalyptic number.

1021222022 is a deficient number, since it is larger than the sum of its proper divisors (510611014).

1021222022 is an equidigital number, since it uses as much as digits as its factorization.

1021222022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510611013.

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

The square root of 1021222022 is about 31956.5646151147. The cubic root of 1021222022 is about 1007.0245475250.

Adding to 1021222022 its reverse (2202221201), we get a palindrome (3223443223).

The spelling of 1021222022 in words is "one billion, twenty-one million, two hundred twenty-two thousand, twenty-two".