102121001016 has 32 divisors (see below), whose sum is σ = 259629667200. Its totient is φ = 33463378400.

The previous prime is 102121001011. The next prime is 102121001083. The reversal of 102121001016 is 610100121201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102121000986 and 102121001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121001011) 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, 36058260 + ... + 36061091.

It is an arithmetic number, because the mean of its divisors is an integer number (8113427100).

Almost surely, 2^102121001016 is an apocalyptic number.

It is an amenable number.

102121001016 is an abundant number, since it is smaller than the sum of its proper divisors (157508666184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102121001016 is a wasteful number, since it uses less digits than its factorization.

102121001016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72119419 (or 72119415 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 102121001016 its reverse (610100121201), we get a palindrome (712221122217).

The spelling of 102121001016 in words is "one hundred two billion, one hundred twenty-one million, one thousand, sixteen".