102100100222121 has 32 divisors (see below), whose sum is σ = 140126225412096. Its totient is φ = 66086917200000.

The previous prime is 102100100222083. The next prime is 102100100222123. The reversal of 102100100222121 is 121222001001201.

It is not a de Polignac number, because 102100100222121 - 2¹³ = 102100100213929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102100100222121.

It is not an unprimeable number, because it can be changed into a prime (102100100222123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27839746 + ... + 31292996.

It is an arithmetic number, because the mean of its divisors is an integer number (4378944544128).

Almost surely, 2^{102100100222121} is an apocalyptic number.

It is an amenable number.

102100100222121 is a deficient number, since it is larger than the sum of its proper divisors (38026125189975).

102100100222121 is a wasteful number, since it uses less digits than its factorization.

102100100222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454453.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102100100222121 its reverse (121222001001201), we get a palindrome (223322101223322).

The spelling of 102100100222121 in words is "one hundred two trillion, one hundred billion, one hundred million, two hundred twenty-two thousand, one hundred twenty-one".