221202122002 has 4 divisors (see below), whose sum is σ = 331803183006. Its totient is φ = 110601061000.

The previous prime is 221202121997. The next prime is 221202122021. The reversal of 221202122002 is 200221202122.

221202122002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 220572061801 + 630060201 = 469651^2 + 25101^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55300530499 + ... + 55300530502.

Almost surely, 2^221202122002 is an apocalyptic number.

221202122002 is a deficient number, since it is larger than the sum of its proper divisors (110601061004).

221202122002 is a wasteful number, since it uses less digits than its factorization.

221202122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110601061003.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221202122002 its reverse (200221202122), we get a palindrome (421423324124).

The spelling of 221202122002 in words is "two hundred twenty-one billion, two hundred two million, one hundred twenty-two thousand, two".