102101212202221 has 16 divisors (see below), whose sum is σ = 110225190096000. Its totient is φ = 94284972029248.

The previous prime is 102101212202189. The next prime is 102101212202237. The reversal of 102101212202221 is 122202212101201.

It is a cyclic number.

It is not a de Polignac number, because 102101212202221 - 2⁵ = 102101212202189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102101212202251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 930871 + ... + 14320228.

It is an arithmetic number, because the mean of its divisors is an integer number (6889074381000).

Almost surely, 2^{102101212202221} is an apocalyptic number.

It is an amenable number.

102101212202221 is a deficient number, since it is larger than the sum of its proper divisors (8123977893779).

102101212202221 is a wasteful number, since it uses less digits than its factorization.

102101212202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15261188.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102101212202221 its reverse (122202212101201), we get a palindrome (224303424303422).

The spelling of 102101212202221 in words is "one hundred two trillion, one hundred one billion, two hundred twelve million, two hundred two thousand, two hundred twenty-one".