102002020121002 has 32 divisors (see below), whose sum is σ = 156631465007424. Its totient is φ = 49792599763200.

The previous prime is 102002020120963. The next prime is 102002020121017. The reversal of 102002020121002 is 200121020200201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3234959977 + ... + 3234991507.

It is an arithmetic number, because the mean of its divisors is an integer number (4894733281482).

Almost surely, 2^{102002020121002} is an apocalyptic number.

102002020121002 is a deficient number, since it is larger than the sum of its proper divisors (54629444886422).

102002020121002 is a wasteful number, since it uses less digits than its factorization.

102002020121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47254.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102002020121002 its reverse (200121020200201), we get a palindrome (302123040321203).

The spelling of 102002020121002 in words is "one hundred two trillion, two billion, twenty million, one hundred twenty-one thousand, two".