10121022221111 has 16 divisors (see below), whose sum is σ = 10248843427200. Its totient is φ = 9993519959808.

The previous prime is 10121022221053. The next prime is 10121022221119. The reversal of 10121022221111 is 11112222012101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10121022221111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10121022221111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121022221119) 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, 393296201 + ... + 393321933.

It is an arithmetic number, because the mean of its divisors is an integer number (640552714200).

Almost surely, 2^{10121022221111} is an apocalyptic number.

10121022221111 is a deficient number, since it is larger than the sum of its proper divisors (127821206089).

10121022221111 is an equidigital number, since it uses as much as digits as its factorization.

10121022221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31738.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10121022221111 its reverse (11112222012101), we get a palindrome (21233244233212).

The spelling of 10121022221111 in words is "ten trillion, one hundred twenty-one billion, twenty-two million, two hundred twenty-one thousand, one hundred eleven".