1011002201221 has 8 divisors (see below), whose sum is σ = 1020553253280. Its totient is φ = 1001453046288.

The previous prime is 1011002201219. The next prime is 1011002201267. The reversal of 1011002201221 is 1221022001101.

1011002201221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1011002201221 - 2¹ = 1011002201219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011002208221) 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, 608190 + ... + 1546576.

It is an arithmetic number, because the mean of its divisors is an integer number (127569156660).

Almost surely, 2^{1011002201221} is an apocalyptic number.

It is an amenable number.

1011002201221 is a deficient number, since it is larger than the sum of its proper divisors (9551052059).

1011002201221 is a wasteful number, since it uses less digits than its factorization.

1011002201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948563.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1011002201221 its reverse (1221022001101), we get a palindrome (2232024202322).

The spelling of 1011002201221 in words is "one trillion, eleven billion, two million, two hundred one thousand, two hundred twenty-one".