1222100220212 has 24 divisors (see below), whose sum is σ = 2140195344000. Its totient is φ = 610615972800.

The previous prime is 1222100220203. The next prime is 1222100220221. The reversal of 1222100220212 is 2120220012221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1222100220203) and next prime (1222100220221).

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, 46371623 + ... + 46397969.

It is an arithmetic number, because the mean of its divisors is an integer number (89174806000).

Almost surely, 2^{1222100220212} is an apocalyptic number.

It is an amenable number.

1222100220212 is a deficient number, since it is larger than the sum of its proper divisors (918095123788).

1222100220212 is a wasteful number, since it uses less digits than its factorization.

1222100220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34151 (or 34149 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1222100220212 its reverse (2120220012221), we get a palindrome (3342320232433).

The spelling of 1222100220212 in words is "one trillion, two hundred twenty-two billion, one hundred million, two hundred twenty thousand, two hundred twelve".