1220122212212 has 24 divisors (see below), whose sum is σ = 2260931641920. Its totient is φ = 574145456000.

The previous prime is 1220122212163. The next prime is 1220122212223. The reversal of 1220122212212 is 2122122210221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888839 + ... + 1797297.

It is an arithmetic number, because the mean of its divisors is an integer number (94205485080).

Almost surely, 2^{1220122212212} is an apocalyptic number.

It is an amenable number.

1220122212212 is a deficient number, since it is larger than the sum of its proper divisors (1040809429708).

1220122212212 is a wasteful number, since it uses less digits than its factorization.

1220122212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928231 (or 928229 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1220122212212 its reverse (2122122210221), we get a palindrome (3342244422433).

The spelling of 1220122212212 in words is "one trillion, two hundred twenty billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twelve".