10112222212221 has 16 divisors (see below), whose sum is σ = 13850105297600. Its totient is φ = 6557982352128.

The previous prime is 10112222212219. The next prime is 10112222212271. The reversal of 10112222212221 is 12221222221101.

It is not a de Polignac number, because 10112222212221 - 2¹ = 10112222212219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112222212271) 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, 8442316 + ... + 9565413.

It is an arithmetic number, because the mean of its divisors is an integer number (865631581100).

Almost surely, 2^{10112222212221} is an apocalyptic number.

It is an amenable number.

10112222212221 is a deficient number, since it is larger than the sum of its proper divisors (3737883085379).

10112222212221 is a wasteful number, since it uses less digits than its factorization.

10112222212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18012828.

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

Adding to 10112222212221 its reverse (12221222221101), we get a palindrome (22333444433322).

The spelling of 10112222212221 in words is "ten trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twelve thousand, two hundred twenty-one".