1222212202211 has 48 divisors (see below), whose sum is σ = 1676095119552. Its totient is φ = 867070448640.

The previous prime is 1222212202181. The next prime is 1222212202219. The reversal of 1222212202211 is 1122022122221.

It is not a de Polignac number, because 1222212202211 - 2¹⁴ = 1222212185827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222212202219) 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 47 ways as a sum of consecutive naturals, for example, 43535 + ... + 1564071.

It is an arithmetic number, because the mean of its divisors is an integer number (34918648324).

Almost surely, 2^{1222212202211} is an apocalyptic number.

1222212202211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1222212202211 is a deficient number, since it is larger than the sum of its proper divisors (453882917341).

1222212202211 is a wasteful number, since it uses less digits than its factorization.

1222212202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1520652 (or 1520641 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1222212202211 its reverse (1122022122221), we get a palindrome (2344234324432).

The spelling of 1222212202211 in words is "one trillion, two hundred twenty-two billion, two hundred twelve million, two hundred two thousand, two hundred eleven".