1222000020212 has 6 divisors (see below), whose sum is σ = 2138500035378. Its totient is φ = 611000010104.

The previous prime is 1222000020211. The next prime is 1222000020217. The reversal of 1222000020212 is 2120200002221.

It can be written as a sum of positive squares in only one way, i.e., 955244297956 + 266755722256 = 977366^2 + 516484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222000020211) by changing a digit.

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 as a sum of consecutive naturals, namely, 152750002523 + ... + 152750002530.

It is an arithmetic number, because the mean of its divisors is an integer number (356416672563).

Almost surely, 2^{1222000020212} is an apocalyptic number.

It is an amenable number.

1222000020212 is a deficient number, since it is larger than the sum of its proper divisors (916500015166).

1222000020212 is a wasteful number, since it uses less digits than its factorization.

1222000020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305500005057 (or 305500005055 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1222000020212 its reverse (2120200002221), we get a palindrome (3342200022433).

The spelling of 1222000020212 in words is "one trillion, two hundred twenty-two billion, twenty thousand, two hundred twelve".