221022101121112 has 32 divisors (see below), whose sum is σ = 416910435202080. Its totient is φ = 109846287060480.

The previous prime is 221022101121089. The next prime is 221022101121137. The reversal of 221022101121112 is 211121101220122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 221022101121112.

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, 13016673 + ... + 24728080.

It is an arithmetic number, because the mean of its divisors is an integer number (13028451100065).

Almost surely, 2^{221022101121112} is an apocalyptic number.

It is an amenable number.

221022101121112 is a deficient number, since it is larger than the sum of its proper divisors (195888334080968).

221022101121112 is a wasteful number, since it uses less digits than its factorization.

221022101121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37749163 (or 37749159 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 221022101121112 its reverse (211121101220122), we get a palindrome (432143202341234).

The spelling of 221022101121112 in words is "two hundred twenty-one trillion, twenty-two billion, one hundred one million, one hundred twenty-one thousand, one hundred twelve".