11212120202212 has 6 divisors (see below), whose sum is σ = 19621210353878. Its totient is φ = 5606060101104.

The previous prime is 11212120202197. The next prime is 11212120202233. The reversal of 11212120202212 is 21220202121211.

It can be written as a sum of positive squares in only one way, i.e., 8016055837696 + 3196064364516 = 2831264^2 + 1787754^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11212120202212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401515025273 + ... + 1401515025280.

Almost surely, 2^{11212120202212} is an apocalyptic number.

It is an amenable number.

11212120202212 is a deficient number, since it is larger than the sum of its proper divisors (8409090151666).

11212120202212 is a wasteful number, since it uses less digits than its factorization.

11212120202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803030050557 (or 2803030050555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11212120202212 its reverse (21220202121211), we get a palindrome (32432322323423).

The spelling of 11212120202212 in words is "eleven trillion, two hundred twelve billion, one hundred twenty million, two hundred two thousand, two hundred twelve".