102012011002221 has 4 divisors (see below), whose sum is σ = 136016014669632. Its totient is φ = 68008007334812.

The previous prime is 102012011002193. The next prime is 102012011002247. The reversal of 102012011002221 is 122200110210201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102012011002221 - 2¹⁸ = 102012010740077 is a prime.

It is a super-3 number, since 3×102012011002221³ (a number of 43 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102012011002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012011001221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17002001833701 + ... + 17002001833706.

It is an arithmetic number, because the mean of its divisors is an integer number (34004003667408).

Almost surely, 2^{102012011002221} is an apocalyptic number.

It is an amenable number.

102012011002221 is a deficient number, since it is larger than the sum of its proper divisors (34004003667411).

102012011002221 is an equidigital number, since it uses as much as digits as its factorization.

102012011002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34004003667410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102012011002221 its reverse (122200110210201), we get a palindrome (224212121212422).

The spelling of 102012011002221 in words is "one hundred two trillion, twelve billion, eleven million, two thousand, two hundred twenty-one".