1010211202221 has 16 divisors (see below), whose sum is σ = 1450620232320. Its totient is φ = 621642479040.

The previous prime is 1010211202183. The next prime is 1010211202243. The reversal of 1010211202221 is 1222021120101.

It is a de Polignac number, because none of the positive numbers 2^k-1010211202221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1010211202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010211202261) 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, 427416 + ... + 1484286.

It is an arithmetic number, because the mean of its divisors is an integer number (90663764520).

Almost surely, 2^{1010211202221} is an apocalyptic number.

It is an amenable number.

1010211202221 is a deficient number, since it is larger than the sum of its proper divisors (440409030099).

1010211202221 is a wasteful number, since it uses less digits than its factorization.

1010211202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081396.

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

Adding to 1010211202221 its reverse (1222021120101), we get a palindrome (2232232322322).

The spelling of 1010211202221 in words is "one trillion, ten billion, two hundred eleven million, two hundred two thousand, two hundred twenty-one".