20212002221222 has 32 divisors (see below), whose sum is σ = 35295153034752. Its totient is φ = 8502273569664.

The previous prime is 20212002221221. The next prime is 20212002221263. The reversal of 20212002221222 is 22212220021202.

It is a junction number, because it is equal to n+sod(n) for n = 20212002221194 and 20212002221203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212002221221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61857608 + ... + 62183499.

It is an arithmetic number, because the mean of its divisors is an integer number (1102973532336).

Almost surely, 2^{20212002221222} is an apocalyptic number.

20212002221222 is a deficient number, since it is larger than the sum of its proper divisors (15083150813530).

20212002221222 is a wasteful number, since it uses less digits than its factorization.

20212002221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124041332.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20212002221222 its reverse (22212220021202), we get a palindrome (42424222242424).

The spelling of 20212002221222 in words is "twenty trillion, two hundred twelve billion, two million, two hundred twenty-one thousand, two hundred twenty-two".