10021112212 has 6 divisors (see below), whose sum is σ = 17536946378. Its totient is φ = 5010556104.

The previous prime is 10021112207. The next prime is 10021112219. The reversal of 10021112212 is 21221112001.

It can be written as a sum of positive squares in only one way, i.e., 9885529476 + 135582736 = 99426^2 + 11644^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10021112192 and 10021112201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021112219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252639023 + ... + 1252639030.

Almost surely, 2^10021112212 is an apocalyptic number.

It is an amenable number.

10021112212 is a deficient number, since it is larger than the sum of its proper divisors (7515834166).

10021112212 is a wasteful number, since it uses less digits than its factorization.

10021112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505278057 (or 2505278055 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10021112212 its reverse (21221112001), we get a palindrome (31242224213).

The spelling of 10021112212 in words is "ten billion, twenty-one million, one hundred twelve thousand, two hundred twelve".