1011122202120 has 64 divisors (see below), whose sum is σ = 3040606296000. Its totient is φ = 268989059328.

The previous prime is 1011122202119. The next prime is 1011122202173. The reversal of 1011122202120 is 212022211101.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1011122202120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10004635 + ... + 10105194.

It is an arithmetic number, because the mean of its divisors is an integer number (47509473375).

Almost surely, 2^{1011122202120} is an apocalyptic number.

1011122202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011122202120 is an abundant number, since it is smaller than the sum of its proper divisors (2029484093880).

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

1011122202120 is a wasteful number, since it uses less digits than its factorization.

1011122202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20110262 (or 20110258 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1011122202120 its reverse (212022211101), we get a palindrome (1223144413221).

The spelling of 1011122202120 in words is "one trillion, eleven billion, one hundred twenty-two million, two hundred two thousand, one hundred twenty".