221121102022 has 16 divisors (see below), whose sum is σ = 349220242800. Its totient is φ = 104717076480.

The previous prime is 221121101983. The next prime is 221121102043. The reversal of 221121102022 is 220201121122.

It is a happy number.

221121102022 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221121101987 and 221121102005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 515379 + ... + 841342.

It is an arithmetic number, because the mean of its divisors is an integer number (21826265175).

Almost surely, 2^221121102022 is an apocalyptic number.

221121102022 is a deficient number, since it is larger than the sum of its proper divisors (128099140778).

221121102022 is a wasteful number, since it uses less digits than its factorization.

221121102022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361031.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221121102022 its reverse (220201121122), we get a palindrome (441322223144).

The spelling of 221121102022 in words is "two hundred twenty-one billion, one hundred twenty-one million, one hundred two thousand, twenty-two".