2111221262523 has 8 divisors (see below), whose sum is σ = 2835508849488. Its totient is φ = 1397207258624.

The previous prime is 2111221262489. The next prime is 2111221262543. The reversal of 2111221262523 is 3252621221112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2111221262523 - 2¹⁷ = 2111221131451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111221262543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2568395286 + ... + 2568396107.

It is an arithmetic number, because the mean of its divisors is an integer number (354438606186).

Almost surely, 2^{2111221262523} is an apocalyptic number.

2111221262523 is a deficient number, since it is larger than the sum of its proper divisors (724287586965).

2111221262523 is a wasteful number, since it uses less digits than its factorization.

2111221262523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136791533.

The product of its digits is 5760, while the sum is 30.

Adding to 2111221262523 its reverse (3252621221112), we get a palindrome (5363842483635).

The spelling of 2111221262523 in words is "two trillion, one hundred eleven billion, two hundred twenty-one million, two hundred sixty-two thousand, five hundred twenty-three".