10420112221511 has 4 divisors (see below), whose sum is σ = 10873160578992. Its totient is φ = 9967063864032.

The previous prime is 10420112221499. The next prime is 10420112221567. The reversal of 10420112221511 is 11512221102401.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10420112221511 - 2¹⁴ = 10420112205127 is a prime.

It is a super-2 number, since 2×10420112221511² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 453048357457 = 10420112221511 / (1 + 0 + 4 + 2 + 0 + 1 + 1 + 2 + 2 + 2 + 1 + 5 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10420112221111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226524178706 + ... + 226524178751.

It is an arithmetic number, because the mean of its divisors is an integer number (2718290144748).

Almost surely, 2^{10420112221511} is an apocalyptic number.

10420112221511 is a deficient number, since it is larger than the sum of its proper divisors (453048357481).

10420112221511 is an equidigital number, since it uses as much as digits as its factorization.

10420112221511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453048357480.

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 10420112221511 its reverse (11512221102401), we get a palindrome (21932333323912).

The spelling of 10420112221511 in words is "ten trillion, four hundred twenty billion, one hundred twelve million, two hundred twenty-one thousand, five hundred eleven".