2211230121 has 16 divisors (see below), whose sum is σ = 2981858880. Its totient is φ = 1457472960.

The previous prime is 2211230107. The next prime is 2211230123. The reversal of 2211230121 is 1210321122.

It is not a de Polignac number, because 2211230121 - 2¹⁴ = 2211213737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2211230121.

It is not an unprimeable number, because it can be changed into a prime (2211230123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82170 + ... + 105708.

It is an arithmetic number, because the mean of its divisors is an integer number (186366180).

Almost surely, 2^2211230121 is an apocalyptic number.

It is an amenable number.

2211230121 is a deficient number, since it is larger than the sum of its proper divisors (770628759).

2211230121 is a wasteful number, since it uses less digits than its factorization.

2211230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23896.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2211230121 is about 47023.7187066272. The cubic root of 2211230121 is about 1302.8006918972.

Adding to 2211230121 its reverse (1210321122), we get a palindrome (3421551243).

The spelling of 2211230121 in words is "two billion, two hundred eleven million, two hundred thirty thousand, one hundred twenty-one".