1010120020221 has 16 divisors (see below), whose sum is σ = 1457791340544. Its totient is φ = 618456922944.

The previous prime is 1010120020213. The next prime is 1010120020289. The reversal of 1010120020221 is 1220200210101.

It is not a de Polignac number, because 1010120020221 - 2³ = 1010120020213 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1010120020197 and 1010120020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010120020201) 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, 65729661 + ... + 65745026.

It is an arithmetic number, because the mean of its divisors is an integer number (91111958784).

Almost surely, 2^{1010120020221} is an apocalyptic number.

It is an amenable number.

1010120020221 is a deficient number, since it is larger than the sum of its proper divisors (447671320323).

1010120020221 is a wasteful number, since it uses less digits than its factorization.

1010120020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131474900.

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

Adding to 1010120020221 its reverse (1220200210101), we get a palindrome (2230320230322).

The spelling of 1010120020221 in words is "one trillion, ten billion, one hundred twenty million, twenty thousand, two hundred twenty-one".