1122220212201 has 20 divisors (see below), whose sum is σ = 1828803310224. Its totient is φ = 680133461400.

The previous prime is 1122220212181. The next prime is 1122220212209. The reversal of 1122220212201 is 1022120222211.

It is a happy number.

1122220212201 is a `hidden beast` number, since 11 + 22 + 220 + 212 + 201 = 666.

It is not a de Polignac number, because 1122220212201 - 2⁷ = 1122220212073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1122220212209) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 629752315 + ... + 629754096.

Almost surely, 2^{1122220212201} is an apocalyptic number.

1122220212201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122220212201 is a deficient number, since it is larger than the sum of its proper divisors (706583098023).

1122220212201 is a wasteful number, since it uses less digits than its factorization.

1122220212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259506434 (or 1259506425 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1122220212201 its reverse (1022120222211), we get a palindrome (2144340434412).

The spelling of 1122220212201 in words is "one trillion, one hundred twenty-two billion, two hundred twenty million, two hundred twelve thousand, two hundred one".