223420101012 has 72 divisors (see below), whose sum is σ = 596723845536. Its totient is φ = 73068192288.

The previous prime is 223420100993. The next prime is 223420101013. The reversal of 223420101012 is 210101024322.

It is a happy number.

223420101012 is a `hidden beast` number, since 223 + 420 + 1 + 0 + 10 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223420101013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2116938 + ... + 2219969.

It is an arithmetic number, because the mean of its divisors is an integer number (8287831188).

Almost surely, 2^223420101012 is an apocalyptic number.

It is an amenable number.

223420101012 is an abundant number, since it is smaller than the sum of its proper divisors (373303744524).

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

223420101012 is a wasteful number, since it uses less digits than its factorization.

223420101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4336979 (or 4336965 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 223420101012 its reverse (210101024322), we get a palindrome (433521125334).

The spelling of 223420101012 in words is "two hundred twenty-three billion, four hundred twenty million, one hundred one thousand, twelve".