1022221022112 has 48 divisors (see below), whose sum is σ = 2981477983680. Its totient is φ = 340740340416.

The previous prime is 1022221022089. The next prime is 1022221022117. The reversal of 1022221022112 is 2112201222201.

It is a happy number.

1022221022112 is a `hidden beast` number, since 1 + 0 + 222 + 210 + 221 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1022221022117) by changing a digit.

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, 591562228 + ... + 591563955.

It is an arithmetic number, because the mean of its divisors is an integer number (62114124660).

Almost surely, 2^{1022221022112} is an apocalyptic number.

1022221022112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022221022112 is an abundant number, since it is smaller than the sum of its proper divisors (1959256961568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1022221022112 is a wasteful number, since it uses less digits than its factorization.

1022221022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183126202 (or 1183126188 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1022221022112 its reverse (2112201222201), we get a palindrome (3134422244313).

The spelling of 1022221022112 in words is "one trillion, twenty-two billion, two hundred twenty-one million, twenty-two thousand, one hundred twelve".