1012142104221 has 16 divisors (see below), whose sum is σ = 1380614054400. Its totient is φ = 659352745008.

The previous prime is 1012142104219. The next prime is 1012142104249. The reversal of 1012142104221 is 1224012412101.

It is not a de Polignac number, because 1012142104221 - 2¹ = 1012142104219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012142104271) 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, 17091151 + ... + 17150268.

It is an arithmetic number, because the mean of its divisors is an integer number (86288378400).

Almost surely, 2^{1012142104221} is an apocalyptic number.

It is an amenable number.

1012142104221 is a deficient number, since it is larger than the sum of its proper divisors (368471950179).

1012142104221 is a wasteful number, since it uses less digits than its factorization.

1012142104221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34241648.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 1012142104221 its reverse (1224012412101), we get a palindrome (2236154516322).

The spelling of 1012142104221 in words is "one trillion, twelve billion, one hundred forty-two million, one hundred four thousand, two hundred twenty-one".