201121241222 has 16 divisors (see below), whose sum is σ = 329239060992. Its totient is φ = 91382197320.

The previous prime is 201121241221. The next prime is 201121241227. The reversal of 201121241222 is 222142121102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201121241194 and 201121241203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121241221) 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, 1771118 + ... + 1881249.

It is an arithmetic number, because the mean of its divisors is an integer number (20577441312).

Almost surely, 2^201121241222 is an apocalyptic number.

201121241222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201121241222 is a deficient number, since it is larger than the sum of its proper divisors (128117819770).

201121241222 is a wasteful number, since it uses less digits than its factorization.

201121241222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654883.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 201121241222 its reverse (222142121102), we get a palindrome (423263362324).

The spelling of 201121241222 in words is "two hundred one billion, one hundred twenty-one million, two hundred forty-one thousand, two hundred twenty-two".