22142142101421 has 12 divisors (see below), whose sum is σ = 31984389486972. Its totient is φ = 14760830218176.

The previous prime is 22142142101413. The next prime is 22142142101437. The reversal of 22142142101421 is 12410124124122.

22142142101421 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 21 + 4 + 210 + 1 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8448730488900 + 13693411612521 = 2906670^2 + 3700461^2 .

It is not a de Polignac number, because 22142142101421 - 2³ = 22142142101413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142142103421) 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, 49586166 + ... + 50030711.

It is an arithmetic number, because the mean of its divisors is an integer number (2665365790581).

Almost surely, 2^{22142142101421} is an apocalyptic number.

It is an amenable number.

22142142101421 is a deficient number, since it is larger than the sum of its proper divisors (9842247385551).

22142142101421 is a wasteful number, since it uses less digits than its factorization.

22142142101421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99641580 (or 99641577 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 22142142101421 its reverse (12410124124122), we get a palindrome (34552266225543).

The spelling of 22142142101421 in words is "twenty-two trillion, one hundred forty-two billion, one hundred forty-two million, one hundred one thousand, four hundred twenty-one".