1011220022212 has 6 divisors (see below), whose sum is σ = 1769635038878. Its totient is φ = 505610011104.

The previous prime is 1011220022209. The next prime is 1011220022237. The reversal of 1011220022212 is 2122200221101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 947305103616 + 63914918596 = 973296^2 + 252814^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126402502773 + ... + 126402502780.

Almost surely, 2^{1011220022212} is an apocalyptic number.

It is an amenable number.

1011220022212 is a deficient number, since it is larger than the sum of its proper divisors (758415016666).

1011220022212 is a wasteful number, since it uses less digits than its factorization.

1011220022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252805005557 (or 252805005555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1011220022212 its reverse (2122200221101), we get a palindrome (3133420243313).

The spelling of 1011220022212 in words is "one trillion, eleven billion, two hundred twenty million, twenty-two thousand, two hundred twelve".