1111020222400 has 168 divisors, whose sum is σ = 3005103911040. Its totient is φ = 400922496000.

The previous prime is 1111020222397. The next prime is 1111020222457. The reversal of 1111020222400 is 42220201111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2064661 + ... + 2546539.

It is an arithmetic number, because the mean of its divisors is an integer number (17887523280).

Almost surely, 2^{1111020222400} is an apocalyptic number.

1111020222400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111020222400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502551955520).

1111020222400 is an abundant number, since it is smaller than the sum of its proper divisors (1894083688640).

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

1111020222400 is a wasteful number, since it uses less digits than its factorization.

1111020222400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482043 (or 482028 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1111020222400 its reverse (42220201111), we get a palindrome (1153240423511).

The spelling of 1111020222400 in words is "one trillion, one hundred eleven billion, twenty million, two hundred twenty-two thousand, four hundred".