1122200201221 has 32 divisors (see below), whose sum is σ = 1268330803200. Its totient is φ = 983667888000.

The previous prime is 1122200201203. The next prime is 1122200201237. The reversal of 1122200201221 is 1221020022211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1122200201221 - 2¹³ = 1122200193029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122200201195 and 1122200201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122200201201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 145906986 + ... + 145914676.

It is an arithmetic number, because the mean of its divisors is an integer number (39635337600).

Almost surely, 2^{1122200201221} is an apocalyptic number.

1122200201221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122200201221 is a deficient number, since it is larger than the sum of its proper divisors (146130601979).

1122200201221 is a wasteful number, since it uses less digits than its factorization.

1122200201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9241.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1122200201221 its reverse (1221020022211), we get a palindrome (2343220223432).

The spelling of 1122200201221 in words is "one trillion, one hundred twenty-two billion, two hundred million, two hundred one thousand, two hundred twenty-one".