221210000102 has 128 divisors (see below), whose sum is σ = 437034528000. Its totient is φ = 83329440768.

The previous prime is 221210000003. The next prime is 221210000113. The reversal of 221210000102 is 201000012122.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18873548 + ... + 18885264.

It is an arithmetic number, because the mean of its divisors is an integer number (3414332250).

Almost surely, 2^221210000102 is an apocalyptic number.

221210000102 is a deficient number, since it is larger than the sum of its proper divisors (215824527898).

221210000102 is a wasteful number, since it uses less digits than its factorization.

221210000102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11855 (or 11841 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 221210000102 its reverse (201000012122), we get a palindrome (422210012224).

The spelling of 221210000102 in words is "two hundred twenty-one billion, two hundred ten million, one hundred two", and thus it is an aban number.