1111022002120 has 64 divisors (see below), whose sum is σ = 2624106481920. Its totient is φ = 422541191424.

The previous prime is 1111022002099. The next prime is 1111022002127. The reversal of 1111022002120 is 212002201111.

It is a self number, because there is not a number n which added to its sum of digits gives 1111022002120.

It is not an unprimeable number, because it can be changed into a prime (1111022002127) 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, 3462027 + ... + 3769306.

It is an arithmetic number, because the mean of its divisors is an integer number (41001663780).

Almost surely, 2^{1111022002120} is an apocalyptic number.

1111022002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111022002120 is an abundant number, since it is smaller than the sum of its proper divisors (1513084479800).

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

1111022002120 is a wasteful number, since it uses less digits than its factorization.

1111022002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7231534 (or 7231530 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1111022002120 its reverse (212002201111), we get a palindrome (1323024203231).

The spelling of 1111022002120 in words is "one trillion, one hundred eleven billion, twenty-two million, two thousand, one hundred twenty".