221210002122002 has 8 divisors (see below), whose sum is σ = 331818156045516. Its totient is φ = 110603950106832.

The previous prime is 221210002121971. The next prime is 221210002122013. The reversal of 221210002122002 is 200221200012122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 147780030303361 + 73429971818641 = 12156481^2 + 8569129^2 .

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

It is a super-2 number, since 2×221210002122002² (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, 525213953 + ... + 525634964.

Almost surely, 2^{221210002122002} is an apocalyptic number.

221210002122002 is a deficient number, since it is larger than the sum of its proper divisors (110608153923514).

221210002122002 is a wasteful number, since it uses less digits than its factorization.

221210002122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050954172.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221210002122002 its reverse (200221200012122), we get a palindrome (421431202134124).

The spelling of 221210002122002 in words is "two hundred twenty-one trillion, two hundred ten billion, two million, one hundred twenty-two thousand, two".