102100011220121 has 8 divisors (see below), whose sum is σ = 107474274844320. Its totient is φ = 96725805478272.

The previous prime is 102100011220021. The next prime is 102100011220139. The reversal of 102100011220121 is 121022110001201.

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

It is a cyclic number.

It is not a de Polignac number, because 102100011220121 - 2²⁶ = 102099944111257 is a prime.

It is a super-2 number, since 2×102100011220121² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102100011220096 and 102100011220105.

It is not an unprimeable number, because it can be changed into a prime (102100011220021) 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, 10826360 + ... + 17927913.

It is an arithmetic number, because the mean of its divisors is an integer number (13434284355540).

Almost surely, 2^{102100011220121} is an apocalyptic number.

It is an amenable number.

102100011220121 is a deficient number, since it is larger than the sum of its proper divisors (5374263624199).

102100011220121 is a wasteful number, since it uses less digits than its factorization.

102100011220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28941175.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102100011220121 its reverse (121022110001201), we get a palindrome (223122121221322).

The spelling of 102100011220121 in words is "one hundred two trillion, one hundred billion, eleven million, two hundred twenty thousand, one hundred twenty-one".