223121023422 has 32 divisors (see below), whose sum is σ = 486888554880. Its totient is φ = 67601452320.

The previous prime is 223121023409. The next prime is 223121023429. The reversal of 223121023422 is 224320121322.

It is a super-3 number, since 3×223121023422³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223121023392 and 223121023401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223121023429) 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, 139753 + ... + 682475.

It is an arithmetic number, because the mean of its divisors is an integer number (15215267340).

Almost surely, 2^223121023422 is an apocalyptic number.

223121023422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

223121023422 is an abundant number, since it is smaller than the sum of its proper divisors (263767531458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223121023422 is a wasteful number, since it uses less digits than its factorization.

223121023422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 548968.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 223121023422 its reverse (224320121322), we get a palindrome (447441144744).

The spelling of 223121023422 in words is "two hundred twenty-three billion, one hundred twenty-one million, twenty-three thousand, four hundred twenty-two".