1012102221111 has 16 divisors (see below), whose sum is σ = 1356551656704. Its totient is φ = 671198788544.

The previous prime is 1012102221083. The next prime is 1012102221113. The reversal of 1012102221111 is 1111222012101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1012102221111 - 2⁵ = 1012102221079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012102221113) 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, 189550 + ... + 1435316.

It is an arithmetic number, because the mean of its divisors is an integer number (84784478544).

Almost surely, 2^{1012102221111} is an apocalyptic number.

1012102221111 is a deficient number, since it is larger than the sum of its proper divisors (344449435593).

1012102221111 is a wasteful number, since it uses less digits than its factorization.

1012102221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247190.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1012102221111 its reverse (1111222012101), we get a palindrome (2123324233212).

The spelling of 1012102221111 in words is "one trillion, twelve billion, one hundred two million, two hundred twenty-one thousand, one hundred eleven".