2201023121 has 16 divisors (see below), whose sum is σ = 2498333760. Its totient is φ = 1920717120.

The previous prime is 2201023117. The next prime is 2201023127. The reversal of 2201023121 is 1213201022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2201023121 - 2² = 2201023117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201023096 and 2201023105.

It is not an unprimeable number, because it can be changed into a prime (2201023127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35246 + ... + 75128.

It is an arithmetic number, because the mean of its divisors is an integer number (156145860).

Almost surely, 2^2201023121 is an apocalyptic number.

It is an amenable number.

2201023121 is a deficient number, since it is larger than the sum of its proper divisors (297310639).

2201023121 is a wasteful number, since it uses less digits than its factorization.

2201023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40096.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2201023121 is about 46915.0628370036. The cubic root of 2201023121 is about 1300.7930311238.

Adding to 2201023121 its reverse (1213201022), we get a palindrome (3414224143).

The spelling of 2201023121 in words is "two billion, two hundred one million, twenty-three thousand, one hundred twenty-one".