102221000100212 has 18 divisors (see below), whose sum is σ = 208092750204402. Its totient is φ = 43809000042864.

The previous prime is 102221000100161. The next prime is 102221000100217. The reversal of 102221000100212 is 212001000122201.

It can be written as a sum of positive squares in only one way, i.e., 98198071336036 + 4022928764176 = 9909494^2 + 2005724^2 .

It is a super-2 number, since 2×102221000100212² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221000100217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 260767857203 + ... + 260767857594.

It is an arithmetic number, because the mean of its divisors is an integer number (11560708344689).

Almost surely, 2^{102221000100212} is an apocalyptic number.

It is an amenable number.

102221000100212 is an abundant number, since it is smaller than the sum of its proper divisors (105871750104190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102221000100212 is a wasteful number, since it uses less digits than its factorization.

102221000100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521535714815 (or 521535714806 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102221000100212 its reverse (212001000122201), we get a palindrome (314222000222413).

The spelling of 102221000100212 in words is "one hundred two trillion, two hundred twenty-one billion, one hundred thousand, two hundred twelve".