212221221000102 has 64 divisors (see below), whose sum is σ = 480519224372160. Its totient is φ = 69403032271872.

The previous prime is 212221221000097. The next prime is 212221221000137. The reversal of 212221221000102 is 201000122122212.

It is a happy number.

212221221000102 is a `hidden beast` number, since 212 + 221 + 221 + 0 + 0 + 0 + 10 + 2 = 666.

212221221000102 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74260278 + ... + 77065110.

It is an arithmetic number, because the mean of its divisors is an integer number (7508112880815).

Almost surely, 2^{212221221000102} is an apocalyptic number.

212221221000102 is an abundant number, since it is smaller than the sum of its proper divisors (268298003372058).

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

212221221000102 is a wasteful number, since it uses less digits than its factorization.

212221221000102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2831334 (or 2831328 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212221221000102 its reverse (201000122122212), we get a palindrome (413221343122314).

The spelling of 212221221000102 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred twenty-one million, one hundred two", and thus it is an aban number.