20111220011202 has 16 divisors (see below), whose sum is σ = 40256155409760. Its totient is φ = 6698120772512.

The previous prime is 20111220011147. The next prime is 20111220011243. The reversal of 20111220011202 is 20211002211102.

It is a super-2 number, since 2×20111220011202² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1404800052 + ... + 1404814367.

It is an arithmetic number, because the mean of its divisors is an integer number (2516009713110).

Almost surely, 2^{20111220011202} is an apocalyptic number.

20111220011202 is an abundant number, since it is smaller than the sum of its proper divisors (20144935398558).

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

20111220011202 is a wasteful number, since it uses less digits than its factorization.

20111220011202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809615617.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20111220011202 its reverse (20211002211102), we get a palindrome (40322222222304).

The spelling of 20111220011202 in words is "twenty trillion, one hundred eleven billion, two hundred twenty million, eleven thousand, two hundred two".