1111201020212 has 6 divisors (see below), whose sum is σ = 1944601785378. Its totient is φ = 555600510104.

The previous prime is 1111201020173. The next prime is 1111201020233. The reversal of 1111201020212 is 2120201021111.

It can be written as a sum of positive squares in only one way, i.e., 1088675212816 + 22525807396 = 1043396^2 + 150086^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138900127523 + ... + 138900127530.

It is an arithmetic number, because the mean of its divisors is an integer number (324100297563).

Almost surely, 2^{1111201020212} is an apocalyptic number.

It is an amenable number.

1111201020212 is a deficient number, since it is larger than the sum of its proper divisors (833400765166).

1111201020212 is a wasteful number, since it uses less digits than its factorization.

1111201020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277800255057 (or 277800255055 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1111201020212 its reverse (2120201021111), we get a palindrome (3231402041323).

The spelling of 1111201020212 in words is "one trillion, one hundred eleven billion, two hundred one million, twenty thousand, two hundred twelve".