22121006456162 has 4 divisors (see below), whose sum is σ = 33181509684246. Its totient is φ = 11060503228080.

The previous prime is 22121006456111. The next prime is 22121006456201. The reversal of 22121006456162 is 26165460012122.

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

It can be written as a sum of positive squares in only one way, i.e., 16528769982481 + 5592236473681 = 4065559^2 + 2364791^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530251614039 + ... + 5530251614042.

Almost surely, 2^{22121006456162} is an apocalyptic number.

22121006456162 is a deficient number, since it is larger than the sum of its proper divisors (11060503228084).

22121006456162 is a wasteful number, since it uses less digits than its factorization.

22121006456162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060503228083.

The product of its (nonzero) digits is 69120, while the sum is 38.

Adding to 22121006456162 its reverse (26165460012122), we get a palindrome (48286466468284).

The spelling of 22121006456162 in words is "twenty-two trillion, one hundred twenty-one billion, six million, four hundred fifty-six thousand, one hundred sixty-two".