1022122111218 has 32 divisors (see below), whose sum is σ = 2277407361600. Its totient is φ = 303654313536.

The previous prime is 1022122111211. The next prime is 1022122111249. The reversal of 1022122111218 is 8121112212201.

It is a super-2 number, since 2×1022122111218² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1022122111211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 225931008 + ... + 225935531.

It is an arithmetic number, because the mean of its divisors is an integer number (71168980050).

Almost surely, 2^{1022122111218} is an apocalyptic number.

1022122111218 is an abundant number, since it is smaller than the sum of its proper divisors (1255285250382).

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

1022122111218 is a wasteful number, since it uses less digits than its factorization.

1022122111218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451866586.

The product of its (nonzero) digits is 256, while the sum is 24.

Adding to 1022122111218 its reverse (8121112212201), we get a palindrome (9143234323419).

The spelling of 1022122111218 in words is "one trillion, twenty-two billion, one hundred twenty-two million, one hundred eleven thousand, two hundred eighteen".