1288222091190 has 96 divisors (see below), whose sum is σ = 3554061204096. Its totient is φ = 322619996160.

The previous prime is 1288222091159. The next prime is 1288222091239. The reversal of 1288222091190 is 911902228821.

It is a super-2 number, since 2×1288222091190² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200871 + ... + 1617650.

It is an arithmetic number, because the mean of its divisors is an integer number (37021470876).

Almost surely, 2^{1288222091190} is an apocalyptic number.

1288222091190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1288222091190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1777030602048).

1288222091190 is an abundant number, since it is smaller than the sum of its proper divisors (2265839112906).

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

1288222091190 is a wasteful number, since it uses less digits than its factorization.

1288222091190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1819014 (or 1819011 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 1288222091190 in words is "one trillion, two hundred eighty-eight billion, two hundred twenty-two million, ninety-one thousand, one hundred ninety".