11211212012022 has 24 divisors (see below), whose sum is σ = 26499228392520. Its totient is φ = 3397336973280.

The previous prime is 11211212011943. The next prime is 11211212012047. The reversal of 11211212012022 is 22021021211211.

11211212012022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11211212011986 and 11211212012004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28311141247 + ... + 28311141642.

It is an arithmetic number, because the mean of its divisors is an integer number (1104134516355).

Almost surely, 2^{11211212012022} is an apocalyptic number.

11211212012022 is an abundant number, since it is smaller than the sum of its proper divisors (15288016380498).

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

11211212012022 is a wasteful number, since it uses less digits than its factorization.

11211212012022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56622282908 (or 56622282905 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11211212012022 its reverse (22021021211211), we get a palindrome (33232233223233).

The spelling of 11211212012022 in words is "eleven trillion, two hundred eleven billion, two hundred twelve million, twelve thousand, twenty-two".