1121100220520 has 96 divisors (see below), whose sum is σ = 2962850244480. Its totient is φ = 373988517120.

The previous prime is 1121100220519. The next prime is 1121100220531. The reversal of 1121100220520 is 250220011211.

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, 1079036 + ... + 1845675.

It is an arithmetic number, because the mean of its divisors is an integer number (30863023380).

Almost surely, 2^{1121100220520} is an apocalyptic number.

1121100220520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121100220520 is an abundant number, since it is smaller than the sum of its proper divisors (1841750023960).

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

1121100220520 is a wasteful number, since it uses less digits than its factorization.

1121100220520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2924803 (or 2924762 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 1121100220520 its reverse (250220011211), we get a palindrome (1371320231731).

The spelling of 1121100220520 in words is "one trillion, one hundred twenty-one billion, one hundred million, two hundred twenty thousand, five hundred twenty".