10001022212 has 6 divisors (see below), whose sum is σ = 17501788878. Its totient is φ = 5000511104.

The previous prime is 10001022203. The next prime is 10001022223. The reversal of 10001022212 is 21222010001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6532518976 + 3468503236 = 80824^2 + 58894^2 .

It is a super-5 number, since 5×10001022212⁵ (a number of 51 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10001022193 and 10001022202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1250127773 + ... + 1250127780.

It is an arithmetic number, because the mean of its divisors is an integer number (2916964813).

Almost surely, 2^10001022212 is an apocalyptic number.

It is an amenable number.

10001022212 is a deficient number, since it is larger than the sum of its proper divisors (7500766666).

10001022212 is a wasteful number, since it uses less digits than its factorization.

10001022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500255557 (or 2500255555 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 10001022212 its reverse (21222010001), we get a palindrome (31223032213).

The spelling of 10001022212 in words is "ten billion, one million, twenty-two thousand, two hundred twelve".