20212202101223 has 4 divisors (see below), whose sum is σ = 22049675019528. Its totient is φ = 18374729182920.

The previous prime is 20212202101213. The next prime is 20212202101303. The reversal of 20212202101223 is 32210120221202.

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

It is not a de Polignac number, because 20212202101223 - 2¹⁰ = 20212202100199 is a prime.

It is a super-2 number, since 2×20212202101223² (a number of 27 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 = 20212202101195 and 20212202101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212202101213) 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, 918736459136 + ... + 918736459157.

It is an arithmetic number, because the mean of its divisors is an integer number (5512418754882).

Almost surely, 2^{20212202101223} is an apocalyptic number.

20212202101223 is a deficient number, since it is larger than the sum of its proper divisors (1837472918305).

20212202101223 is a wasteful number, since it uses less digits than its factorization.

20212202101223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837472918304.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20212202101223 its reverse (32210120221202), we get a palindrome (52422322322425).

The spelling of 20212202101223 in words is "twenty trillion, two hundred twelve billion, two hundred two million, one hundred one thousand, two hundred twenty-three".