1111220100120 has 64 divisors (see below), whose sum is σ = 3590095713120. Its totient is φ = 273531101184.

The previous prime is 1111220100101. The next prime is 1111220100139. The reversal of 1111220100120 is 210010221111.

It is an interprime number because it is at equal distance from previous prime (1111220100101) and next prime (1111220100139).

It is a super-2 number, since 2×1111220100120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1111220100096 and 1111220100105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356158729 + ... + 356161848.

Almost surely, 2^{1111220100120} is an apocalyptic number.

1111220100120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111220100120 is an abundant number, since it is smaller than the sum of its proper divisors (2478875613000).

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

1111220100120 is a wasteful number, since it uses less digits than its factorization.

1111220100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712320604 (or 712320600 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1111220100120 its reverse (210010221111), we get a palindrome (1321230321231).

The spelling of 1111220100120 in words is "one trillion, one hundred eleven billion, two hundred twenty million, one hundred thousand, one hundred twenty".