242122030451 has 16 divisors (see below), whose sum is σ = 280808070144. Its totient is φ = 204473916864.

The previous prime is 242122030433. The next prime is 242122030519. The reversal of 242122030451 is 154030221242.

It is a de Polignac number, because none of the positive numbers 2^k-242122030451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242122030451.

It is not an unprimeable number, because it can be changed into a prime (242122030651) 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, 354530 + ... + 780983.

It is an arithmetic number, because the mean of its divisors is an integer number (17550504384).

Almost surely, 2^242122030451 is an apocalyptic number.

242122030451 is a deficient number, since it is larger than the sum of its proper divisors (38686039693).

242122030451 is a wasteful number, since it uses less digits than its factorization.

242122030451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135970.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 242122030451 its reverse (154030221242), we get a palindrome (396152251693).

The spelling of 242122030451 in words is "two hundred forty-two billion, one hundred twenty-two million, thirty thousand, four hundred fifty-one".