542225012111 has 4 divisors (see below), whose sum is σ = 542760279672. Its totient is φ = 541689744552.

The previous prime is 542225012033. The next prime is 542225012141. The reversal of 542225012111 is 111210522245.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542225012111 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 (542225012141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267632261 + ... + 267634286.

It is an arithmetic number, because the mean of its divisors is an integer number (135690069918).

Almost surely, 2^542225012111 is an apocalyptic number.

542225012111 is a deficient number, since it is larger than the sum of its proper divisors (535267561).

542225012111 is a wasteful number, since it uses less digits than its factorization.

542225012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535267560.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 542225012111 its reverse (111210522245), we get a palindrome (653435534356).

The spelling of 542225012111 in words is "five hundred forty-two billion, two hundred twenty-five million, twelve thousand, one hundred eleven".