11211021220222 has 16 divisors (see below), whose sum is σ = 16823148059952. Its totient is φ = 5603305573440.

The previous prime is 11211021220219. The next prime is 11211021220271. The reversal of 11211021220222 is 22202212011211.

It is a self number, because there is not a number n which added to its sum of digits gives 11211021220222.

It is a congruent number.

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, 64299322 + ... + 64473442.

It is an arithmetic number, because the mean of its divisors is an integer number (1051446753747).

Almost surely, 2^{11211021220222} is an apocalyptic number.

11211021220222 is a deficient number, since it is larger than the sum of its proper divisors (5612126839730).

11211021220222 is a wasteful number, since it uses less digits than its factorization.

11211021220222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186603.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11211021220222 its reverse (22202212011211), we get a palindrome (33413233231433).

The spelling of 11211021220222 in words is "eleven trillion, two hundred eleven billion, twenty-one million, two hundred twenty thousand, two hundred twenty-two".