2211220122 has 32 divisors (see below), whose sum is σ = 4545590400. Its totient is φ = 716580288.

The previous prime is 2211220097. The next prime is 2211220129. The reversal of 2211220122 is 2210221122.

It is not an unprimeable number, because it can be changed into a prime (2211220129) 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, 342904 + ... + 349292.

It is an arithmetic number, because the mean of its divisors is an integer number (142049700).

Almost surely, 2^2211220122 is an apocalyptic number.

2211220122 is an abundant number, since it is smaller than the sum of its proper divisors (2334370278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211220122 is a wasteful number, since it uses less digits than its factorization.

2211220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7990.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2211220122 is about 47023.6123878207. The cubic root of 2211220122 is about 1302.7987281752.

Adding to 2211220122 its reverse (2210221122), we get a palindrome (4421441244).

It can be divided in two parts, 221 and 1220122, that multiplied together give a palindrome (269646962).

The spelling of 2211220122 in words is "two billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty-two".