1220020122212 has 12 divisors (see below), whose sum is σ = 2135097467580. Its totient is φ = 609992274336.

The previous prime is 1220020122161. The next prime is 1220020122247. The reversal of 1220020122212 is 2122210200221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 139701022756 + 1080319099456 = 373766^2 + 1039384^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4291763 + ... + 4567194.

It is an arithmetic number, because the mean of its divisors is an integer number (177924788965).

Almost surely, 2^{1220020122212} is an apocalyptic number.

It is an amenable number.

1220020122212 is a deficient number, since it is larger than the sum of its proper divisors (915077345368).

1220020122212 is a wasteful number, since it uses less digits than its factorization.

1220020122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8893390 (or 8893388 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1220020122212 its reverse (2122210200221), we get a palindrome (3342230322433).

The spelling of 1220020122212 in words is "one trillion, two hundred twenty billion, twenty million, one hundred twenty-two thousand, two hundred twelve".