11122221220202 has 4 divisors (see below), whose sum is σ = 16683331830306. Its totient is φ = 5561110610100.

The previous prime is 11122221220153. The next prime is 11122221220213. The reversal of 11122221220202 is 20202212222111.

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., 9884478193681 + 1237743026521 = 3143959^2 + 1112539^2 .

It is a super-2 number, since 2×11122221220202² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2780555305049 + ... + 2780555305052.

Almost surely, 2^{11122221220202} is an apocalyptic number.

11122221220202 is a deficient number, since it is larger than the sum of its proper divisors (5561110610104).

11122221220202 is an equidigital number, since it uses as much as digits as its factorization.

11122221220202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5561110610103.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11122221220202 its reverse (20202212222111), we get a palindrome (31324433442313).

The spelling of 11122221220202 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-one million, two hundred twenty thousand, two hundred two".