102011220112101 has 4 divisors (see below), whose sum is σ = 136014960149472. Its totient is φ = 68007480074732.

The previous prime is 102011220112091. The next prime is 102011220112121. The reversal of 102011220112101 is 101211022110201.

It is a happy number.

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 102011220112101 - 2¹³ = 102011220103909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011220112121) 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, 17001870018681 + ... + 17001870018686.

It is an arithmetic number, because the mean of its divisors is an integer number (34003740037368).

Almost surely, 2^{102011220112101} is an apocalyptic number.

It is an amenable number.

102011220112101 is a deficient number, since it is larger than the sum of its proper divisors (34003740037371).

102011220112101 is an equidigital number, since it uses as much as digits as its factorization.

102011220112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34003740037370.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102011220112101 its reverse (101211022110201), we get a palindrome (203222242222302).

The spelling of 102011220112101 in words is "one hundred two trillion, eleven billion, two hundred twenty million, one hundred twelve thousand, one hundred one".