212020221023 has 16 divisors (see below), whose sum is σ = 234181113600. Its totient is φ = 190706814720.

The previous prime is 212020220927. The next prime is 212020221041. The reversal of 212020221023 is 320122020212.

It is a cyclic number.

It is not a de Polignac number, because 212020221023 - 2⁸ = 212020220767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212020220992 and 212020221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212020229023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201938 + ... + 681776.

It is an arithmetic number, because the mean of its divisors is an integer number (14636319600).

Almost surely, 2^212020221023 is an apocalyptic number.

212020221023 is a deficient number, since it is larger than the sum of its proper divisors (22160892577).

212020221023 is a wasteful number, since it uses less digits than its factorization.

212020221023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480722.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 212020221023 its reverse (320122020212), we get a palindrome (532142241235).

The spelling of 212020221023 in words is "two hundred twelve billion, twenty million, two hundred twenty-one thousand, twenty-three".