10042012221 has 16 divisors (see below), whose sum is σ = 14706839040. Its totient is φ = 6066569520.

The previous prime is 10042012219. The next prime is 10042012243. The reversal of 10042012221 is 12221024001.

It is not a de Polignac number, because 10042012221 - 2¹ = 10042012219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10042012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10042012021) 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, 3828595 + ... + 3831216.

It is an arithmetic number, because the mean of its divisors is an integer number (919177440).

Almost surely, 2^10042012221 is an apocalyptic number.

It is an amenable number.

10042012221 is a deficient number, since it is larger than the sum of its proper divisors (4664826819).

10042012221 is a wasteful number, since it uses less digits than its factorization.

10042012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7659856.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10042012221 its reverse (12221024001), we get a palindrome (22263036222).

The spelling of 10042012221 in words is "ten billion, forty-two million, twelve thousand, two hundred twenty-one".