222022121004 has 36 divisors (see below), whose sum is σ = 562248634584. Its totient is φ = 73872070272.

The previous prime is 222022120967. The next prime is 222022121011. The reversal of 222022121004 is 400121220222.

222022121004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×222022121004² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5617677 + ... + 5657060.

Almost surely, 2^222022121004 is an apocalyptic number.

It is an amenable number.

222022121004 is an abundant number, since it is smaller than the sum of its proper divisors (340226513580).

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

222022121004 is a wasteful number, since it uses less digits than its factorization.

222022121004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11275294 (or 11275289 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222022121004 its reverse (400121220222), we get a palindrome (622143341226).

The spelling of 222022121004 in words is "two hundred twenty-two billion, twenty-two million, one hundred twenty-one thousand, four".