20212202112222 has 16 divisors (see below), whose sum is σ = 40425281035920. Its totient is φ = 6737254568832.

The previous prime is 20212202112049. The next prime is 20212202112229. The reversal of 20212202112222 is 22221120221202.

It is a super-2 number, since 2×20212202112222² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212202112229) 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, 36233947 + ... + 36787542.

It is an arithmetic number, because the mean of its divisors is an integer number (2526580064745).

Almost surely, 2^{20212202112222} is an apocalyptic number.

20212202112222 is an abundant number, since it is smaller than the sum of its proper divisors (20213078923698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20212202112222 is a wasteful number, since it uses less digits than its factorization.

20212202112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73067627.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 20212202112222 its reverse (22221120221202), we get a palindrome (42433322333424).

The spelling of 20212202112222 in words is "twenty trillion, two hundred twelve billion, two hundred two million, one hundred twelve thousand, two hundred twenty-two".