10101221200012 has 6 divisors (see below), whose sum is σ = 17677137100028. Its totient is φ = 5050610600004.

The previous prime is 10101221199917. The next prime is 10101221200013. The reversal of 10101221200012 is 21000212210101.

It is a junction number, because it is equal to n+sod(n) for n = 10101221199965 and 10101221200001.

It is not an unprimeable number, because it can be changed into a prime (10101221200013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1262652649998 + ... + 1262652650005.

Almost surely, 2^{10101221200012} is an apocalyptic number.

It is an amenable number.

10101221200012 is a deficient number, since it is larger than the sum of its proper divisors (7575915900016).

10101221200012 is a wasteful number, since it uses less digits than its factorization.

10101221200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2525305300007 (or 2525305300005 counting only the distinct ones).

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

Adding to 10101221200012 its reverse (21000212210101), we get a palindrome (31101433410113).

The spelling of 10101221200012 in words is "ten trillion, one hundred one billion, two hundred twenty-one million, two hundred thousand, twelve".