102121210041101 has 24 divisors (see below), whose sum is σ = 111258037868544. Its totient is φ = 93623534125920.

The previous prime is 102121210041083. The next prime is 102121210041113. The reversal of 102121210041101 is 101140012121201.

It is not a de Polignac number, because 102121210041101 - 2¹⁸ = 102121209778957 is a prime.

It is a super-2 number, since 2×102121210041101² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 102121210041101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121210041121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 829672775 + ... + 829795851.

It is an arithmetic number, because the mean of its divisors is an integer number (4635751577856).

Almost surely, 2^{102121210041101} is an apocalyptic number.

It is an amenable number.

102121210041101 is a deficient number, since it is larger than the sum of its proper divisors (9136827827443).

102121210041101 is a wasteful number, since it uses less digits than its factorization.

102121210041101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197289 (or 197270 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102121210041101 its reverse (101140012121201), we get a palindrome (203261222162302).

The spelling of 102121210041101 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred ten million, forty-one thousand, one hundred one".