1022211222112 has 24 divisors (see below), whose sum is σ = 2077397001792. Its totient is φ = 494618332800.

The previous prime is 1022211222101. The next prime is 1022211222121. The reversal of 1022211222112 is 2112221122201.

It is a super-2 number, since 2×1022211222112² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022211222112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515226439 + ... + 515228422.

It is an arithmetic number, because the mean of its divisors is an integer number (86558208408).

Almost surely, 2^{1022211222112} is an apocalyptic number.

It is an amenable number.

1022211222112 is an abundant number, since it is smaller than the sum of its proper divisors (1055185779680).

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

1022211222112 is a wasteful number, since it uses less digits than its factorization.

1022211222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030454902 (or 1030454894 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1022211222112 its reverse (2112221122201), we get a palindrome (3134432344313).

The spelling of 1022211222112 in words is "one trillion, twenty-two billion, two hundred eleven million, two hundred twenty-two thousand, one hundred twelve".