2122101222212 has 6 divisors (see below), whose sum is σ = 3713677138878. Its totient is φ = 1061050611104.

The previous prime is 2122101222193. The next prime is 2122101222217. The reversal of 2122101222212 is 2122221012212.

It can be written as a sum of positive squares in only one way, i.e., 1114916362816 + 1007184859396 = 1055896^2 + 1003586^2 .

It is not an unprimeable number, because it can be changed into a prime (2122101222217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265262652773 + ... + 265262652780.

It is an arithmetic number, because the mean of its divisors is an integer number (618946189813).

Almost surely, 2^{2122101222212} is an apocalyptic number.

It is an amenable number.

2122101222212 is a deficient number, since it is larger than the sum of its proper divisors (1591575916666).

2122101222212 is a wasteful number, since it uses less digits than its factorization.

2122101222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530525305557 (or 530525305555 counting only the distinct ones).

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

Adding to 2122101222212 its reverse (2122221012212), we get a palindrome (4244322234424).

The spelling of 2122101222212 in words is "two trillion, one hundred twenty-two billion, one hundred one million, two hundred twenty-two thousand, two hundred twelve".