1201212011120 has 160 divisors (see below), whose sum is σ = 3089285844480. Its totient is φ = 430738560000.

The previous prime is 1201212011119. The next prime is 1201212011159. The reversal of 1201212011120 is 211102121021.

It is a junction number, because it is equal to n+sod(n) for n = 1201212011095 and 1201212011104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20209445 + ... + 20268795.

It is an arithmetic number, because the mean of its divisors is an integer number (19308036528).

Almost surely, 2^{1201212011120} is an apocalyptic number.

1201212011120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201212011120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1544642922240).

1201212011120 is an abundant number, since it is smaller than the sum of its proper divisors (1888073833360).

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

1201212011120 is a wasteful number, since it uses less digits than its factorization.

1201212011120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59695 (or 59689 counting only the distinct ones).

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

Adding to 1201212011120 its reverse (211102121021), we get a palindrome (1412314132141).

The spelling of 1201212011120 in words is "one trillion, two hundred one billion, two hundred twelve million, eleven thousand, one hundred twenty".