11101222001212 has 24 divisors (see below), whose sum is σ = 22202516883456. Its totient is φ = 4757650954608.

The previous prime is 11101222001161. The next prime is 11101222001239. The reversal of 11101222001212 is 21210022210111.

It is a congruent number.

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, 13214613 + ... + 14029555.

It is an arithmetic number, because the mean of its divisors is an integer number (925104870144).

Almost surely, 2^{11101222001212} is an apocalyptic number.

It is an amenable number.

11101222001212 is an abundant number, since it is smaller than the sum of its proper divisors (11101294882244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11101222001212 is a wasteful number, since it uses less digits than its factorization.

11101222001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301457 (or 1301455 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11101222001212 its reverse (21210022210111), we get a palindrome (32311244211323).

The spelling of 11101222001212 in words is "eleven trillion, one hundred one billion, two hundred twenty-two million, one thousand, two hundred twelve".