22220212022011 has 4 divisors (see below), whose sum is σ = 22220226068152. Its totient is φ = 22220197975872.

The previous prime is 22220212021981. The next prime is 22220212022017. The reversal of 22220212022011 is 11022021202222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22220212022011 - 2⁹ = 22220212021499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22220212022011.

It is not an unprimeable number, because it can be changed into a prime (22220212022017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4297590 + ... + 7931563.

It is an arithmetic number, because the mean of its divisors is an integer number (5555056517038).

Almost surely, 2^{22220212022011} is an apocalyptic number.

22220212022011 is a deficient number, since it is larger than the sum of its proper divisors (14046141).

22220212022011 is a wasteful number, since it uses less digits than its factorization.

22220212022011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14046140.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 22220212022011 its reverse (11022021202222), we get a palindrome (33242233224233).

The spelling of 22220212022011 in words is "twenty-two trillion, two hundred twenty billion, two hundred twelve million, twenty-two thousand, eleven".