2101201022212 has 6 divisors (see below), whose sum is σ = 3677101788878. Its totient is φ = 1050600511104.

The previous prime is 2101201022201. The next prime is 2101201022213. The reversal of 2101201022212 is 2122201021012.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1998310195456 + 102890826756 = 1413616^2 + 320766^2 .

It is not an unprimeable number, because it can be changed into a prime (2101201022213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262650127773 + ... + 262650127780.

Almost surely, 2^{2101201022212} is an apocalyptic number.

It is an amenable number.

2101201022212 is a deficient number, since it is larger than the sum of its proper divisors (1575900766666).

2101201022212 is a wasteful number, since it uses less digits than its factorization.

2101201022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525300255557 (or 525300255555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2101201022212 its reverse (2122201021012), we get a palindrome (4223402043224).

The spelling of 2101201022212 in words is "two trillion, one hundred one billion, two hundred one million, twenty-two thousand, two hundred twelve".