212222121023 has 8 divisors (see below), whose sum is σ = 243700043520. Its totient is φ = 182775032280.

The previous prime is 212222120993. The next prime is 212222121101. The reversal of 212222121023 is 320121222212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212222121023 - 2¹⁰ = 212222119999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212222120986 and 212222121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212222181023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507708215 + ... + 507708632.

It is an arithmetic number, because the mean of its divisors is an integer number (30462505440).

Almost surely, 2^212222121023 is an apocalyptic number.

212222121023 is a deficient number, since it is larger than the sum of its proper divisors (31477922497).

212222121023 is a wasteful number, since it uses less digits than its factorization.

212222121023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015416877.

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

Adding to 212222121023 its reverse (320121222212), we get a palindrome (532343343235).

The spelling of 212222121023 in words is "two hundred twelve billion, two hundred twenty-two million, one hundred twenty-one thousand, twenty-three".