22120221220212 has 48 divisors (see below), whose sum is σ = 52347224267072. Its totient is φ = 7268740934400.

The previous prime is 22120221220211. The next prime is 22120221220219. The reversal of 22120221220212 is 21202212202122.

22120221220212 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×22120221220212² (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 (22120221220211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4613539 + ... + 8094762.

Almost surely, 2^{22120221220212} is an apocalyptic number.

It is an amenable number.

22120221220212 is an abundant number, since it is smaller than the sum of its proper divisors (30227003046860).

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

22120221220212 is a wasteful number, since it uses less digits than its factorization.

22120221220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12710368 (or 12710366 counting only the distinct ones).

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

Adding to 22120221220212 its reverse (21202212202122), we get a palindrome (43322433422334).

It can be divided in two parts, 2 and 2120221220212, that multiplied together give a palindrome (4240442440424).

The spelling of 22120221220212 in words is "twenty-two trillion, one hundred twenty billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twelve".