22121202442 has 8 divisors (see below), whose sum is σ = 33339064032. Its totient is φ = 11008181100.

The previous prime is 22121202431. The next prime is 22121202463. The reversal of 22121202442 is 24420212122.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26209534 + ... + 26210377.

It is an arithmetic number, because the mean of its divisors is an integer number (4167383004).

Almost surely, 2^22121202442 is an apocalyptic number.

22121202442 is a deficient number, since it is larger than the sum of its proper divisors (11217861590).

22121202442 is a wasteful number, since it uses less digits than its factorization.

22121202442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52420124.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 22121202442 its reverse (24420212122), we get a palindrome (46541414564).

The spelling of 22121202442 in words is "twenty-two billion, one hundred twenty-one million, two hundred two thousand, four hundred forty-two".