140223223342121 has 4 divisors (see below), whose sum is σ = 140576430454212. Its totient is φ = 139870016230032.

The previous prime is 140223223342063. The next prime is 140223223342127. The reversal of 140223223342121 is 121243322322041.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 109739452435600 + 30483770906521 = 10475660^2 + 5521211^2 .

It is a cyclic number.

It is not a de Polignac number, because 140223223342121 - 2²⁶ = 140223156233257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140223223342127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176603555450 + ... + 176603556243.

It is an arithmetic number, because the mean of its divisors is an integer number (35144107613553).

Almost surely, 2^{140223223342121} is an apocalyptic number.

It is an amenable number.

140223223342121 is a deficient number, since it is larger than the sum of its proper divisors (353207112091).

140223223342121 is an equidigital number, since it uses as much as digits as its factorization.

140223223342121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353207112090.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 140223223342121 its reverse (121243322322041), we get a palindrome (261466545664162).

The spelling of 140223223342121 in words is "one hundred forty trillion, two hundred twenty-three billion, two hundred twenty-three million, three hundred forty-two thousand, one hundred twenty-one".