1012010020221 has 32 divisors (see below), whose sum is σ = 1399827640320. Its totient is φ = 649566187200.

The previous prime is 1012010020117. The next prime is 1012010020237. The reversal of 1012010020221 is 1220200102101.

It is not a de Polignac number, because 1012010020221 - 2³⁷ = 874571066749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012010020197 and 1012010020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012010020421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88899696 + ... + 88911078.

It is an arithmetic number, because the mean of its divisors is an integer number (43744613760).

Almost surely, 2^{1012010020221} is an apocalyptic number.

It is an amenable number.

1012010020221 is a deficient number, since it is larger than the sum of its proper divisors (387817620099).

1012010020221 is a wasteful number, since it uses less digits than its factorization.

1012010020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14217.

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

Adding to 1012010020221 its reverse (1220200102101), we get a palindrome (2232210122322).

The spelling of 1012010020221 in words is "one trillion, twelve billion, ten million, twenty thousand, two hundred twenty-one".