11011211222012 has 24 divisors (see below), whose sum is σ = 19339105465680. Its totient is φ = 5485773323520.

The previous prime is 11011211221993. The next prime is 11011211222051. The reversal of 11011211222012 is 21022211211011.

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, 482087 + ... + 4717502.

It is an arithmetic number, because the mean of its divisors is an integer number (805796061070).

Almost surely, 2^{11011211222012} is an apocalyptic number.

It is an amenable number.

11011211222012 is a deficient number, since it is larger than the sum of its proper divisors (8327894243668).

11011211222012 is a wasteful number, since it uses less digits than its factorization.

11011211222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5201501 (or 5201499 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11011211222012 its reverse (21022211211011), we get a palindrome (32033422433023).

The spelling of 11011211222012 in words is "eleven trillion, eleven billion, two hundred eleven million, two hundred twenty-two thousand, twelve".