20212202223212 has 24 divisors (see below), whose sum is σ = 35739574336704. Its totient is φ = 10000916070912.

The previous prime is 20212202223173. The next prime is 20212202223259. The reversal of 20212202223212 is 21232220221202.

It is a super-2 number, since 2×20212202223212² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1299293 + ... + 6489419.

It is an arithmetic number, because the mean of its divisors is an integer number (1489148930696).

Almost surely, 2^{20212202223212} is an apocalyptic number.

It is an amenable number.

20212202223212 is a deficient number, since it is larger than the sum of its proper divisors (15527372113492).

20212202223212 is a wasteful number, since it uses less digits than its factorization.

20212202223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5200265 (or 5200263 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20212202223212 its reverse (21232220221202), we get a palindrome (41444422444414).

The spelling of 20212202223212 in words is "twenty trillion, two hundred twelve billion, two hundred two million, two hundred twenty-three thousand, two hundred twelve".