1222101220203 has 12 divisors (see below), whose sum is σ = 1842007636560. Its totient is φ = 779310922896.

The previous prime is 1222101220163. The next prime is 1222101220211. The reversal of 1222101220203 is 3020221012221.

It is not a de Polignac number, because 1222101220203 - 2¹² = 1222101216107 is a prime.

It is a super-2 number, since 2×1222101220203² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222101220903) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2951935108 + ... + 2951935521.

It is an arithmetic number, because the mean of its divisors is an integer number (153500636380).

Almost surely, 2^{1222101220203} is an apocalyptic number.

1222101220203 is a deficient number, since it is larger than the sum of its proper divisors (619906416357).

1222101220203 is a wasteful number, since it uses less digits than its factorization.

1222101220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5903870658 (or 5903870655 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1222101220203 its reverse (3020221012221), we get a palindrome (4242322232424).

The spelling of 1222101220203 in words is "one trillion, two hundred twenty-two billion, one hundred one million, two hundred twenty thousand, two hundred three".