1012201102221 has 8 divisors (see below), whose sum is σ = 1350646867104. Its totient is φ = 674278036080.

The previous prime is 1012201102169. The next prime is 1012201102267. The reversal of 1012201102221 is 1222011022101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1012201102221 - 2³⁷ = 874762148749 is a prime.

It is a super-2 number, since 2×1012201102221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1012201102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012201802221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130670166 + ... + 130677911.

It is an arithmetic number, because the mean of its divisors is an integer number (168830858388).

Almost surely, 2^{1012201102221} is an apocalyptic number.

It is an amenable number.

1012201102221 is a deficient number, since it is larger than the sum of its proper divisors (338445764883).

1012201102221 is a wasteful number, since it uses less digits than its factorization.

1012201102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261349371.

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

Adding to 1012201102221 its reverse (1222011022101), we get a palindrome (2234212124322).

The spelling of 1012201102221 in words is "one trillion, twelve billion, two hundred one million, one hundred two thousand, two hundred twenty-one".