2220121023 has 8 divisors (see below), whose sum is σ = 3088864128. Its totient is φ = 1415729304.

The previous prime is 2220120997. The next prime is 2220121039. The reversal of 2220121023 is 3201210222.

It is a happy number.

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

It is not a de Polignac number, because 2220121023 - 2¹³ = 2220112831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2220120993 and 2220121011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220121073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16087765 + ... + 16087902.

It is an arithmetic number, because the mean of its divisors is an integer number (386108016).

Almost surely, 2^2220121023 is an apocalyptic number.

2220121023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2220121023 is a deficient number, since it is larger than the sum of its proper divisors (868743105).

2220121023 is a wasteful number, since it uses less digits than its factorization.

2220121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32175693.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2220121023 is about 47118.1602251191. The cubic root of 2220121023 is about 1304.5444548472.

Adding to 2220121023 its reverse (3201210222), we get a palindrome (5421331245).

The spelling of 2220121023 in words is "two billion, two hundred twenty million, one hundred twenty-one thousand, twenty-three".