1012221021201 has 16 divisors (see below), whose sum is σ = 1471843618560. Its totient is φ = 615020365440.

The previous prime is 1012221021199. The next prime is 1012221021233. The reversal of 1012221021201 is 1021201222101.

It is not a de Polignac number, because 1012221021201 - 2¹ = 1012221021199 is a prime.

It is a super-2 number, since 2×1012221021201² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1012221021601) 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, 164265180 + ... + 164271341.

It is an arithmetic number, because the mean of its divisors is an integer number (91990226160).

Almost surely, 2^{1012221021201} is an apocalyptic number.

It is an amenable number.

1012221021201 is a deficient number, since it is larger than the sum of its proper divisors (459622597359).

1012221021201 is a wasteful number, since it uses less digits than its factorization.

1012221021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328536616.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1012221021201 its reverse (1021201222101), we get a palindrome (2033422243302).

The spelling of 1012221021201 in words is "one trillion, twelve billion, two hundred twenty-one million, twenty-one thousand, two hundred one".