1201111221033 has 48 divisors (see below), whose sum is σ = 1835515805760. Its totient is φ = 784735547904.

The previous prime is 1201111221001. The next prime is 1201111221043. The reversal of 1201111221033 is 3301221111021.

It is not a de Polignac number, because 1201111221033 - 2⁵ = 1201111221001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201111220997 and 1201111221015.

It is not an unprimeable number, because it can be changed into a prime (1201111221043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2198110 + ... + 2689592.

It is an arithmetic number, because the mean of its divisors is an integer number (38239912620).

Almost surely, 2^{1201111221033} is an apocalyptic number.

It is an amenable number.

1201111221033 is a deficient number, since it is larger than the sum of its proper divisors (634404584727).

1201111221033 is an equidigital number, since it uses as much as digits as its factorization.

1201111221033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491700 (or 491688 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1201111221033 its reverse (3301221111021), we get a palindrome (4502332332054).

The spelling of 1201111221033 in words is "one trillion, two hundred one billion, one hundred eleven million, two hundred twenty-one thousand, thirty-three".