11001220010212 has 24 divisors (see below), whose sum is σ = 20386990181880. Its totient is φ = 5176441121280.

The previous prime is 11001220010191. The next prime is 11001220010227. The reversal of 11001220010212 is 21201002210011.

It can be written as a sum of positive squares in 4 ways, for example, as 2930314017856 + 8070905992356 = 1711816^2 + 2840934^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11001220010192 and 11001220010201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8843287 + ... + 10010302.

It is an arithmetic number, because the mean of its divisors is an integer number (849457924245).

Almost surely, 2^{11001220010212} is an apocalyptic number.

It is an amenable number.

11001220010212 is a deficient number, since it is larger than the sum of its proper divisors (9385770171668).

11001220010212 is a wasteful number, since it uses less digits than its factorization.

11001220010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18862191 (or 18862189 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11001220010212 its reverse (21201002210011), we get a palindrome (32202222220223).

The spelling of 11001220010212 in words is "eleven trillion, one billion, two hundred twenty million, ten thousand, two hundred twelve".