22220212111111 has 8 divisors (see below), whose sum is σ = 25402320275840. Its totient is φ = 19040051983608.

The previous prime is 22220212111057. The next prime is 22220212111121. The reversal of 22220212111111 is 11111121202222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22220212111111 - 2²⁵ = 22220178556679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220212111121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486984861 + ... + 487030486.

It is an arithmetic number, because the mean of its divisors is an integer number (3175290034480).

Almost surely, 2^{22220212111111} is an apocalyptic number.

22220212111111 is a deficient number, since it is larger than the sum of its proper divisors (3182108164729).

22220212111111 is an equidigital number, since it uses as much as digits as its factorization.

22220212111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974018613.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22220212111111 its reverse (11111121202222), we get a palindrome (33331333313333).

The spelling of 22220212111111 in words is "twenty-two trillion, two hundred twenty billion, two hundred twelve million, one hundred eleven thousand, one hundred eleven".