2002101221122 has 16 divisors (see below), whose sum is σ = 3179933468280. Its totient is φ = 942128051968.

The previous prime is 2002101221119. The next prime is 2002101221203. The reversal of 2002101221122 is 2211221012002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1720192256721 + 281908964401 = 1311561^2 + 530951^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2002101221096 and 2002101221105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280573 + ... + 2020624.

Almost surely, 2^{2002101221122} is an apocalyptic number.

2002101221122 is a deficient number, since it is larger than the sum of its proper divisors (1177832247158).

2002101221122 is a wasteful number, since it uses less digits than its factorization.

2002101221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2326805.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2002101221122 its reverse (2211221012002), we get a palindrome (4213322233124).

The spelling of 2002101221122 in words is "two trillion, two billion, one hundred one million, two hundred twenty-one thousand, one hundred twenty-two".