2000001221122 has 4 divisors (see below), whose sum is σ = 3000001831686. Its totient is φ = 1000000610560.

The previous prime is 2000001221111. The next prime is 2000001221123. The reversal of 2000001221122 is 2211221000002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1978976511121 + 21024710001 = 1406761^2 + 144999^2 .

It is a super-2 number, since 2×2000001221122² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2000001221123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500000305279 + ... + 500000305282.

Almost surely, 2^{2000001221122} is an apocalyptic number.

2000001221122 is a deficient number, since it is larger than the sum of its proper divisors (1000000610564).

2000001221122 is a wasteful number, since it uses less digits than its factorization.

2000001221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000000610563.

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

Adding to 2000001221122 its reverse (2211221000002), we get a palindrome (4211222221124).

The spelling of 2000001221122 in words is "two trillion, one million, two hundred twenty-one thousand, one hundred twenty-two".