245342244102021 has 24 divisors (see below), whose sum is σ = 387110599915104. Its totient is φ = 148495846030560.

The previous prime is 245342244102017. The next prime is 245342244102037. The reversal of 245342244102021 is 120201442243542.

245342244102021 is a `hidden beast` number, since 2 + 4 + 5 + 3 + 4 + 2 + 2 + 441 + 0 + 202 + 1 = 666.

It is not a de Polignac number, because 245342244102021 - 2² = 245342244102017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245342244102121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1636784031 + ... + 1636933916.

It is an arithmetic number, because the mean of its divisors is an integer number (16129608329796).

Almost surely, 2^{245342244102021} is an apocalyptic number.

It is an amenable number.

245342244102021 is a deficient number, since it is larger than the sum of its proper divisors (141768355813083).

245342244102021 is a wasteful number, since it uses less digits than its factorization.

245342244102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3273718721 (or 3273718718 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 36.

Adding to 245342244102021 its reverse (120201442243542), we get a palindrome (365543686345563).

The spelling of 245342244102021 in words is "two hundred forty-five trillion, three hundred forty-two billion, two hundred forty-four million, one hundred two thousand, twenty-one".