20002211122 has 24 divisors (see below), whose sum is σ = 31213518336. Its totient is φ = 9612758064.

The previous prime is 20002211071. The next prime is 20002211147. The reversal of 20002211122 is 22111220002.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348423 + ... + 401749.

It is an arithmetic number, because the mean of its divisors is an integer number (1300563264).

Almost surely, 2^20002211122 is an apocalyptic number.

20002211122 is a deficient number, since it is larger than the sum of its proper divisors (11211307214).

20002211122 is a wasteful number, since it uses less digits than its factorization.

20002211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53610 (or 53581 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20002211122 its reverse (22111220002), we get a palindrome (42113431124).

It can be divided in two parts, 2000 and 2211122, that added together give a palindrome (2213122).

The spelling of 20002211122 in words is "twenty billion, two million, two hundred eleven thousand, one hundred twenty-two".