11220022122212 has 6 divisors (see below), whose sum is σ = 19635038713878. Its totient is φ = 5610011061104.

The previous prime is 11220022122209. The next prime is 11220022122251. The reversal of 11220022122212 is 21222122002211.

It can be written as a sum of positive squares in only one way, i.e., 6599689068196 + 4620333054016 = 2568986^2 + 2149496^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402502765273 + ... + 1402502765280.

It is an arithmetic number, because the mean of its divisors is an integer number (3272506452313).

Almost surely, 2^{11220022122212} is an apocalyptic number.

It is an amenable number.

11220022122212 is a deficient number, since it is larger than the sum of its proper divisors (8415016591666).

11220022122212 is a wasteful number, since it uses less digits than its factorization.

11220022122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805005530557 (or 2805005530555 counting only the distinct ones).

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

Adding to 11220022122212 its reverse (21222122002211), we get a palindrome (32442144124423).

The spelling of 11220022122212 in words is "eleven trillion, two hundred twenty billion, twenty-two million, one hundred twenty-two thousand, two hundred twelve".