1122112121201 has 16 divisors (see below), whose sum is σ = 1160190259200. Its totient is φ = 1084634843088.

The previous prime is 1122112121189. The next prime is 1122112121203. The reversal of 1122112121201 is 1021212112211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122112121201 is a prime.

It is a super-2 number, since 2×1122112121201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122112121201.

It is not an unprimeable number, because it can be changed into a prime (1122112121203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11729480 + ... + 11824758.

It is an arithmetic number, because the mean of its divisors is an integer number (72511891200).

Almost surely, 2^{1122112121201} is an apocalyptic number.

It is an amenable number.

1122112121201 is a deficient number, since it is larger than the sum of its proper divisors (38078137999).

1122112121201 is an equidigital number, since it uses as much as digits as its factorization.

1122112121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98428.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1122112121201 its reverse (1021212112211), we get a palindrome (2143324233412).

The spelling of 1122112121201 in words is "one trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, two hundred one".