1012102221 has 8 divisors (see below), whose sum is σ = 1453275040. Its totient is φ = 622832112.

The previous prime is 1012102219. The next prime is 1012102283. The reversal of 1012102221 is 1222012101.

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

It is not a de Polignac number, because 1012102221 - 2¹ = 1012102219 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1012102197 and 1012102206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012102121) 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, 12975631 + ... + 12975708.

It is an arithmetic number, because the mean of its divisors is an integer number (181659380).

Almost surely, 2^1012102221 is an apocalyptic number.

It is an amenable number.

1012102221 is a deficient number, since it is larger than the sum of its proper divisors (441172819).

1012102221 is a wasteful number, since it uses less digits than its factorization.

1012102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25951355.

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

The square root of 1012102221 is about 31813.5540454065. The cubic root of 1012102221 is about 1004.0179084571.

Adding to 1012102221 its reverse (1222012101), we get a palindrome (2234114322).

The spelling of 1012102221 in words is "one billion, twelve million, one hundred two thousand, two hundred twenty-one".