10021200020212 has 6 divisors (see below), whose sum is σ = 17537100035378. Its totient is φ = 5010600010104.

The previous prime is 10021200020201. The next prime is 10021200020219. The reversal of 10021200020212 is 21202000212001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9718968360676 + 302231659536 = 3117526^2 + 549756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10021200020192 and 10021200020201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021200020219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252650002523 + ... + 1252650002530.

Almost surely, 2^{10021200020212} is an apocalyptic number.

It is an amenable number.

10021200020212 is a deficient number, since it is larger than the sum of its proper divisors (7515900015166).

10021200020212 is a wasteful number, since it uses less digits than its factorization.

10021200020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505300005057 (or 2505300005055 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10021200020212 its reverse (21202000212001), we get a palindrome (31223200232213).

The spelling of 10021200020212 in words is "ten trillion, twenty-one billion, two hundred million, twenty thousand, two hundred twelve".