102133101221 has 4 divisors (see below), whose sum is σ = 103124684832. Its totient is φ = 101141517612.

The previous prime is 102133101197. The next prime is 102133101227. The reversal of 102133101221 is 122101331201.

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 a de Polignac number, because none of the positive numbers 2^k-102133101221 is a prime.

It is a super-3 number, since 3×102133101221³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102133101221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102133101227) 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, 495791651 + ... + 495791856.

It is an arithmetic number, because the mean of its divisors is an integer number (25781171208).

Almost surely, 2^102133101221 is an apocalyptic number.

It is an amenable number.

102133101221 is a deficient number, since it is larger than the sum of its proper divisors (991583611).

102133101221 is an equidigital number, since it uses as much as digits as its factorization.

102133101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991583610.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 102133101221 its reverse (122101331201), we get a palindrome (224234432422).

The spelling of 102133101221 in words is "one hundred two billion, one hundred thirty-three million, one hundred one thousand, two hundred twenty-one".