212303123202211 has 4 divisors (see below), whose sum is σ = 212303663865792. Its totient is φ = 212302582538632.

The previous prime is 212303123202199. The next prime is 212303123202221. The reversal of 212303123202211 is 112202321303212.

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

It is a cyclic number.

It is not a de Polignac number, because 212303123202211 - 2⁷ = 212303123202083 is a prime.

It is a super-2 number, since 2×212303123202211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212303123202221) 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, 269742355 + ... + 270528268.

It is an arithmetic number, because the mean of its divisors is an integer number (53075915966448).

Almost surely, 2^{212303123202211} is an apocalyptic number.

212303123202211 is a deficient number, since it is larger than the sum of its proper divisors (540663581).

212303123202211 is an equidigital number, since it uses as much as digits as its factorization.

212303123202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540663580.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 212303123202211 its reverse (112202321303212), we get a palindrome (324505444505423).

The spelling of 212303123202211 in words is "two hundred twelve trillion, three hundred three billion, one hundred twenty-three million, two hundred two thousand, two hundred eleven".