202142121229 has 4 divisors (see below), whose sum is σ = 202165345984. Its totient is φ = 202118896476.

The previous prime is 202142121227. The next prime is 202142121253. The reversal of 202142121229 is 922121241202.

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 202142121229 - 2¹ = 202142121227 is a prime.

It is a super-2 number, since 2×202142121229² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202142121197 and 202142121206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202142121227) 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, 11599317 + ... + 11616730.

It is an arithmetic number, because the mean of its divisors is an integer number (50541336496).

Almost surely, 2^202142121229 is an apocalyptic number.

It is an amenable number.

202142121229 is a deficient number, since it is larger than the sum of its proper divisors (23224755).

202142121229 is an equidigital number, since it uses as much as digits as its factorization.

202142121229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23224754.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 202142121229 in words is "two hundred two billion, one hundred forty-two million, one hundred twenty-one thousand, two hundred twenty-nine".