1201122101120 has 64 divisors (see below), whose sum is σ = 2872265572800. Its totient is φ = 480309454848.

The previous prime is 1201122101119. The next prime is 1201122101191. The reversal of 1201122101120 is 211012211021.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 1201122101095 and 1201122101104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1949657 + ... + 2490663.

It is an arithmetic number, because the mean of its divisors is an integer number (44879149575).

Almost surely, 2^{1201122101120} is an apocalyptic number.

1201122101120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201122101120 is an abundant number, since it is smaller than the sum of its proper divisors (1671143471680).

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

1201122101120 is an equidigital number, since it uses as much as digits as its factorization.

1201122101120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544495 (or 544483 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1201122101120 its reverse (211012211021), we get a palindrome (1412134312141).

The spelling of 1201122101120 in words is "one trillion, two hundred one billion, one hundred twenty-two million, one hundred one thousand, one hundred twenty".