1201121022113 has 4 divisors (see below), whose sum is σ = 1239866861568. Its totient is φ = 1162375182660.

The previous prime is 1201121022089. The next prime is 1201121022131. The reversal of 1201121022113 is 3112201211021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1201121022113 - 2⁸ = 1201121021857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201121022091 and 1201121022100.

It is not an unprimeable number, because it can be changed into a prime (1201121022313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19372919681 + ... + 19372919742.

It is an arithmetic number, because the mean of its divisors is an integer number (309966715392).

Almost surely, 2^{1201121022113} is an apocalyptic number.

It is an amenable number.

1201121022113 is a deficient number, since it is larger than the sum of its proper divisors (38745839455).

1201121022113 is an equidigital number, since it uses as much as digits as its factorization.

1201121022113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38745839454.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1201121022113 its reverse (3112201211021), we get a palindrome (4313322233134).

The spelling of 1201121022113 in words is "one trillion, two hundred one billion, one hundred twenty-one million, twenty-two thousand, one hundred thirteen".