142001221213 has 4 divisors (see below), whose sum is σ = 145022523840. Its totient is φ = 138979918588.

The previous prime is 142001221207. The next prime is 142001221217. The reversal of 142001221213 is 312122100241.

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 142001221213 - 2²⁵ = 141967666781 is a prime.

It is a super-2 number, since 2×142001221213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142001221217) 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, 1510651243 + ... + 1510651336.

It is an arithmetic number, because the mean of its divisors is an integer number (36255630960).

Almost surely, 2^142001221213 is an apocalyptic number.

It is an amenable number.

142001221213 is a deficient number, since it is larger than the sum of its proper divisors (3021302627).

142001221213 is an equidigital number, since it uses as much as digits as its factorization.

142001221213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021302626.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 142001221213 its reverse (312122100241), we get a palindrome (454123321454).

The spelling of 142001221213 in words is "one hundred forty-two billion, one million, two hundred twenty-one thousand, two hundred thirteen".