210202211213122 has 4 divisors (see below), whose sum is σ = 315303316819686. Its totient is φ = 105101105606560.

The previous prime is 210202211213077. The next prime is 210202211213129. The reversal of 210202211213122 is 221312112202012.

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

It can be written as a sum of positive squares in only one way, i.e., 120812390777961 + 89389820435161 = 10991469^2 + 9454619^2 .

It is a super-3 number, since 3×210202211213122³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210202211213093 and 210202211213102.

It is not an unprimeable number, because it can be changed into a prime (210202211213129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52550552803279 + ... + 52550552803282.

Almost surely, 2^{210202211213122} is an apocalyptic number.

210202211213122 is a deficient number, since it is larger than the sum of its proper divisors (105101105606564).

210202211213122 is a wasteful number, since it uses less digits than its factorization.

210202211213122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105101105606563.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 210202211213122 its reverse (221312112202012), we get a palindrome (431514323415134).

The spelling of 210202211213122 in words is "two hundred ten trillion, two hundred two billion, two hundred eleven million, two hundred thirteen thousand, one hundred twenty-two".