1222120222201 has 8 divisors (see below), whose sum is σ = 1265591869704. Its totient is φ = 1179404603520.

The previous prime is 1222120222199. The next prime is 1222120222261. The reversal of 1222120222201 is 1022220212221.

It can be written as a sum of positive squares in 4 ways, for example, as 334569696400 + 887550525801 = 578420^2 + 942099^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222120222201 - 2¹ = 1222120222199 is a prime.

It is a super-2 number, since 2×1222120222201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222120222261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189003916 + ... + 189010381.

It is an arithmetic number, because the mean of its divisors is an integer number (158198983713).

Almost surely, 2^{1222120222201} is an apocalyptic number.

It is an amenable number.

1222120222201 is a deficient number, since it is larger than the sum of its proper divisors (43471647503).

1222120222201 is an equidigital number, since it uses as much as digits as its factorization.

1222120222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378014411.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1222120222201 its reverse (1022220212221), we get a palindrome (2244340434422).

The spelling of 1222120222201 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, two hundred one".