22142560151421 has 10 divisors (see below), whose sum is σ = 33077157757182. Its totient is φ = 14761706767560.

The previous prime is 22142560151417. The next prime is 22142560151429. The reversal of 22142560151421 is 12415106524122.

22142560151421 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 2 + 5 + 601 + 5 + 1 + 42 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20507665474521 + 1634894676900 = 4528539^2 + 1278630^2 .

It is not a de Polignac number, because 22142560151421 - 2² = 22142560151417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142560151429) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 136682469990 + ... + 136682470151.

Almost surely, 2^{22142560151421} is an apocalyptic number.

It is an amenable number.

22142560151421 is a deficient number, since it is larger than the sum of its proper divisors (10934597605761).

22142560151421 is an equidigital number, since it uses as much as digits as its factorization.

22142560151421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273364940153 (or 273364940144 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

Adding to 22142560151421 its reverse (12415106524122), we get a palindrome (34557666675543).

The spelling of 22142560151421 in words is "twenty-two trillion, one hundred forty-two billion, five hundred sixty million, one hundred fifty-one thousand, four hundred twenty-one".