11221202211212 has 24 divisors (see below), whose sum is σ = 22712794841856. Its totient is φ = 4751145857808.

The previous prime is 11221202211211. The next prime is 11221202211223. The reversal of 11221202211212 is 21211220212211.

It is not an unprimeable number, because it can be changed into a prime (11221202211211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2414197808 + ... + 2414202455.

It is an arithmetic number, because the mean of its divisors is an integer number (946366451744).

Almost surely, 2^{11221202211212} is an apocalyptic number.

It is an amenable number.

11221202211212 is an abundant number, since it is smaller than the sum of its proper divisors (11491592630644).

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

11221202211212 is a wasteful number, since it uses less digits than its factorization.

11221202211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4828400357 (or 4828400355 counting only the distinct ones).

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

Adding to 11221202211212 its reverse (21211220212211), we get a palindrome (32432422423423).

The spelling of 11221202211212 in words is "eleven trillion, two hundred twenty-one billion, two hundred two million, two hundred eleven thousand, two hundred twelve".