221021222200102 has 8 divisors (see below), whose sum is σ = 331532442065016. Its totient is φ = 110510408178432.

The previous prime is 221021222200091. The next prime is 221021222200127. The reversal of 221021222200102 is 201002222120122.

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

It is a super-2 number, since 2×221021222200102² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221021222200102.

It is a congruent number.

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, 100095643 + ... + 102279910.

It is an arithmetic number, because the mean of its divisors is an integer number (41441555258127).

Almost surely, 2^{221021222200102} is an apocalyptic number.

221021222200102 is a deficient number, since it is larger than the sum of its proper divisors (110511219864914).

221021222200102 is a wasteful number, since it uses less digits than its factorization.

221021222200102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202921622.

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

Adding to 221021222200102 its reverse (201002222120122), we get a palindrome (422023444320224).

The spelling of 221021222200102 in words is "two hundred twenty-one trillion, twenty-one billion, two hundred twenty-two million, two hundred thousand, one hundred two".