141220210021021 has 4 divisors (see below), whose sum is σ = 141220566563872. Its totient is φ = 141219853478172.

The previous prime is 141220210020937. The next prime is 141220210021057. The reversal of 141220210021021 is 120120012022141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 141220210021021 - 2⁷ = 141220210020893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 141220210021021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (141220210001021) 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, 177676641 + ... + 178469686.

It is an arithmetic number, because the mean of its divisors is an integer number (35305141640968).

Almost surely, 2^{141220210021021} is an apocalyptic number.

It is an amenable number.

141220210021021 is a deficient number, since it is larger than the sum of its proper divisors (356542851).

141220210021021 is an equidigital number, since it uses as much as digits as its factorization.

141220210021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356542850.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 141220210021021 its reverse (120120012022141), we get a palindrome (261340222043162).

The spelling of 141220210021021 in words is "one hundred forty-one trillion, two hundred twenty billion, two hundred ten million, twenty-one thousand, twenty-one".