1242401022 has 24 divisors (see below), whose sum is σ = 2764623576. Its totient is φ = 402940656.

The previous prime is 1242401011. The next prime is 1242401029. The reversal of 1242401022 is 2201042421.

1242401022 is a `hidden beast` number, since 1 + 242 + 401 + 0 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1242400986 and 1242401004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242401029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 932068 + ... + 933399.

It is an arithmetic number, because the mean of its divisors is an integer number (115192649).

Almost surely, 2^1242401022 is an apocalyptic number.

1242401022 is an abundant number, since it is smaller than the sum of its proper divisors (1522222554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242401022 is a wasteful number, since it uses less digits than its factorization.

1242401022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865512 (or 1865509 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1242401022 is about 35247.7094574952. The cubic root of 1242401022 is about 1075.0300397591.

Adding to 1242401022 its reverse (2201042421), we get a palindrome (3443443443).

The spelling of 1242401022 in words is "one billion, two hundred forty-two million, four hundred one thousand, twenty-two".