222001023402 has 32 divisors (see below), whose sum is σ = 494799552000. Its totient is φ = 73780749504.

The previous prime is 222001023373. The next prime is 222001023421. The reversal of 222001023402 is 204320100222.

222001023402 is a `hidden beast` number, since 2 + 220 + 0 + 102 + 340 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6081402 + ... + 6117797.

It is an arithmetic number, because the mean of its divisors is an integer number (15462486000).

Almost surely, 2^222001023402 is an apocalyptic number.

222001023402 is an abundant number, since it is smaller than the sum of its proper divisors (272798528598).

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

222001023402 is a wasteful number, since it uses less digits than its factorization.

222001023402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12199547 (or 12199541 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 222001023402 its reverse (204320100222), we get a palindrome (426321123624).

The spelling of 222001023402 in words is "two hundred twenty-two billion, one million, twenty-three thousand, four hundred two".