1012000120221 has 16 divisors (see below), whose sum is σ = 1408117095936. Its totient is φ = 645279817776.

The previous prime is 1012000120207. The next prime is 1012000120247. The reversal of 1012000120221 is 1220210002101.

It is not a de Polignac number, because 1012000120221 - 2⁵ = 1012000120189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012000120197 and 1012000120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012000121221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236326 + ... + 1442168.

It is an arithmetic number, because the mean of its divisors is an integer number (88007318496).

Almost surely, 2^{1012000120221} is an apocalyptic number.

It is an amenable number.

1012000120221 is a deficient number, since it is larger than the sum of its proper divisors (396116975715).

1012000120221 is a wasteful number, since it uses less digits than its factorization.

1012000120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218032.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1012000120221 its reverse (1220210002101), we get a palindrome (2232210122322).

The spelling of 1012000120221 in words is "one trillion, twelve billion, one hundred twenty thousand, two hundred twenty-one".