222221221100002 has 8 divisors (see below), whose sum is σ = 333332500254300. Its totient is φ = 111110387681904.

The previous prime is 222221221099987. The next prime is 222221221100027. The reversal of 222221221100002 is 200001122122222.

It can be written as a sum of positive squares in 2 ways, for example, as 203087324258641 + 19133896841361 = 14250871^2 + 4374231^2 .

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

It is a super-2 number, since 2×222221221100002² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110184877 + ... + 112183552.

Almost surely, 2^{222221221100002} is an apocalyptic number.

222221221100002 is a deficient number, since it is larger than the sum of its proper divisors (111111279154298).

222221221100002 is a wasteful number, since it uses less digits than its factorization.

222221221100002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222868100.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 222221221100002 its reverse (200001122122222), we get a palindrome (422222343222224).

The spelling of 222221221100002 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred thousand, two".