102121012102102 has 96 divisors (see below), whose sum is σ = 184903007682816. Its totient is φ = 42132821068800.

The previous prime is 102121012102079. The next prime is 102121012102121. The reversal of 102121012102102 is 201201210121201.

It is a super-4 number, since 4×102121012102102⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 519123202 + ... + 519319882.

It is an arithmetic number, because the mean of its divisors is an integer number (1926072996696).

Almost surely, 2^{102121012102102} is an apocalyptic number.

102121012102102 is a deficient number, since it is larger than the sum of its proper divisors (82781995580714).

102121012102102 is a wasteful number, since it uses less digits than its factorization.

102121012102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197622 (or 197615 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102121012102102 its reverse (201201210121201), we get a palindrome (303322222223303).

The spelling of 102121012102102 in words is "one hundred two trillion, one hundred twenty-one billion, twelve million, one hundred two thousand, one hundred two".