2011220121202 has 12 divisors (see below), whose sum is σ = 3028003695918. Its totient is φ = 1001899249200.

The previous prime is 2011220121181. The next prime is 2011220121203. The reversal of 2011220121202 is 2021210221102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1642393470481 + 368826650721 = 1281559^2 + 607311^2 .

It is not an unprimeable number, because it can be changed into a prime (2011220121203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6699499 + ... + 6993262.

Almost surely, 2^{2011220121202} is an apocalyptic number.

2011220121202 is a deficient number, since it is larger than the sum of its proper divisors (1016783574716).

2011220121202 is an equidigital number, since it uses as much as digits as its factorization.

2011220121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13693305 (or 13693034 counting only the distinct ones).

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

Adding to 2011220121202 its reverse (2021210221102), we get a palindrome (4032430342304).

The spelling of 2011220121202 in words is "two trillion, eleven billion, two hundred twenty million, one hundred twenty-one thousand, two hundred two".