21224010102142 has 8 divisors (see below), whose sum is σ = 31836460197600. Its totient is φ = 10611856702944.

The previous prime is 21224010102049. The next prime is 21224010102151. The reversal of 21224010102142 is 24120101042212.

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

It is a congruent number.

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, 73995142 + ... + 74281417.

It is an arithmetic number, because the mean of its divisors is an integer number (3979557524700).

Almost surely, 2^{21224010102142} is an apocalyptic number.

21224010102142 is a deficient number, since it is larger than the sum of its proper divisors (10612450095458).

21224010102142 is a wasteful number, since it uses less digits than its factorization.

21224010102142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148348130.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 21224010102142 its reverse (24120101042212), we get a palindrome (45344111144354).

The spelling of 21224010102142 in words is "twenty-one trillion, two hundred twenty-four billion, ten million, one hundred two thousand, one hundred forty-two".