1011121222120 has 64 divisors (see below), whose sum is σ = 2285837003520. Its totient is φ = 402529979904.

The previous prime is 1011121222093. The next prime is 1011121222169. The reversal of 1011121222120 is 212221211101.

It is a super-2 number, since 2×1011121222120² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011121222094 and 1011121222103.

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, 8038029 + ... + 8162851.

It is an arithmetic number, because the mean of its divisors is an integer number (35716203180).

Almost surely, 2^{1011121222120} is an apocalyptic number.

1011121222120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011121222120 is an abundant number, since it is smaller than the sum of its proper divisors (1274715781400).

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

1011121222120 is a wasteful number, since it uses less digits than its factorization.

1011121222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125794 (or 125790 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1011121222120 its reverse (212221211101), we get a palindrome (1223342433221).

The spelling of 1011121222120 in words is "one trillion, eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty".