11211222012212 has 12 divisors (see below), whose sum is σ = 19646925923520. Its totient is φ = 5597814605496.

The previous prime is 11211222012187. The next prime is 11211222012223. The reversal of 11211222012212 is 21221022211211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1949096918 + ... + 1949102669.

It is an arithmetic number, because the mean of its divisors is an integer number (1637243826960).

Almost surely, 2^{11211222012212} is an apocalyptic number.

It is an amenable number.

11211222012212 is a deficient number, since it is larger than the sum of its proper divisors (8435703911308).

11211222012212 is a wasteful number, since it uses less digits than its factorization.

11211222012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3898200310 (or 3898200308 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11211222012212 its reverse (21221022211211), we get a palindrome (32432244223423).

The spelling of 11211222012212 in words is "eleven trillion, two hundred eleven billion, two hundred twenty-two million, twelve thousand, two hundred twelve".