1011210202221 has 8 divisors (see below), whose sum is σ = 1348339576320. Its totient is φ = 674110481472.

The previous prime is 1011210202201. The next prime is 1011210202231. The reversal of 1011210202221 is 1222020121101.

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

It is not a de Polignac number, because 1011210202221 - 2²⁶ = 1011143093357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1011210202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011210202201) 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, 7333645 + ... + 7470258.

It is an arithmetic number, because the mean of its divisors is an integer number (168542447040).

Almost surely, 2^{1011210202221} is an apocalyptic number.

It is an amenable number.

1011210202221 is a deficient number, since it is larger than the sum of its proper divisors (337129374099).

1011210202221 is a wasteful number, since it uses less digits than its factorization.

1011210202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14826675.

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

Adding to 1011210202221 its reverse (1222020121101), we get a palindrome (2233230323322).

The spelling of 1011210202221 in words is "one trillion, eleven billion, two hundred ten million, two hundred two thousand, two hundred twenty-one".