102121222202111 has 8 divisors (see below), whose sum is σ = 116714877770784. Its totient is φ = 87528794018400.

The previous prime is 102121222202071. The next prime is 102121222202171. The reversal of 102121222202111 is 111202222121201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102121222202111 - 2²² = 102121218007807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121222202171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306667940 + ... + 307000761.

It is an arithmetic number, because the mean of its divisors is an integer number (14589359721348).

Almost surely, 2^{102121222202111} is an apocalyptic number.

102121222202111 is a deficient number, since it is larger than the sum of its proper divisors (14593655568673).

102121222202111 is an equidigital number, since it uses as much as digits as its factorization.

102121222202111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613692481.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 102121222202111 its reverse (111202222121201), we get a palindrome (213323444323312).

The spelling of 102121222202111 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred two thousand, one hundred eleven".