1220201022212 has 6 divisors (see below), whose sum is σ = 2135351788878. Its totient is φ = 610100511104.

The previous prime is 1220201022203. The next prime is 1220201022233. The reversal of 1220201022212 is 2122201020221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1052376429316 + 167824592896 = 1025854^2 + 409664^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152525127773 + ... + 152525127780.

It is an arithmetic number, because the mean of its divisors is an integer number (355891964813).

Almost surely, 2^{1220201022212} is an apocalyptic number.

It is an amenable number.

1220201022212 is a deficient number, since it is larger than the sum of its proper divisors (915150766666).

1220201022212 is a wasteful number, since it uses less digits than its factorization.

1220201022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305050255557 (or 305050255555 counting only the distinct ones).

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

Adding to 1220201022212 its reverse (2122201020221), we get a palindrome (3342402042433).

The spelling of 1220201022212 in words is "one trillion, two hundred twenty billion, two hundred one million, twenty-two thousand, two hundred twelve".