20221220011222 has 4 divisors (see below), whose sum is σ = 30331830016836. Its totient is φ = 10110610005610.

The previous prime is 20221220011211. The next prime is 20221220011261. The reversal of 20221220011222 is 22211002212202.

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

It is a super-3 number, since 3×20221220011222³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20221220011222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055305002804 + ... + 5055305002807.

It is an arithmetic number, because the mean of its divisors is an integer number (7582957504209).

Almost surely, 2^{20221220011222} is an apocalyptic number.

20221220011222 is a deficient number, since it is larger than the sum of its proper divisors (10110610005614).

20221220011222 is a wasteful number, since it uses less digits than its factorization.

20221220011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110610005613.

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

Adding to 20221220011222 its reverse (22211002212202), we get a palindrome (42432222223424).

The spelling of 20221220011222 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty million, eleven thousand, two hundred twenty-two".