221221021102022 has 16 divisors (see below), whose sum is σ = 337259975179680. Its totient is φ = 108814685837568.

The previous prime is 221221021102001. The next prime is 221221021102043. The reversal of 221221021102022 is 220201120122122.

It is an interprime number because it is at equal distance from previous prime (221221021102001) and next prime (221221021102043).

It is a junction number, because it is equal to n+sod(n) for n = 221221021101985 and 221221021102003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3414082997 + ... + 3414147792.

It is an arithmetic number, because the mean of its divisors is an integer number (21078748448730).

Almost surely, 2^{221221021102022} is an apocalyptic number.

221221021102022 is a deficient number, since it is larger than the sum of its proper divisors (116038954077658).

221221021102022 is a wasteful number, since it uses less digits than its factorization.

221221021102022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6828231055.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221221021102022 its reverse (220201120122122), we get a palindrome (441422141224144).

The spelling of 221221021102022 in words is "two hundred twenty-one trillion, two hundred twenty-one billion, twenty-one million, one hundred two thousand, twenty-two".