102021011212120 has 128 divisors (see below), whose sum is σ = 308203334691840. Its totient is φ = 29352698519040.

The previous prime is 102021011212093. The next prime is 102021011212129. The reversal of 102021011212120 is 21212110120201.

It is a junction number, because it is equal to n+sod(n) for n = 102021011212094 and 102021011212103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021011212129) 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, 1273948612 + ... + 1274028691.

It is an arithmetic number, because the mean of its divisors is an integer number (2407838552280).

Almost surely, 2^{102021011212120} is an apocalyptic number.

102021011212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102021011212120 is an abundant number, since it is smaller than the sum of its proper divisors (206182323479720).

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

102021011212120 is a wasteful number, since it uses less digits than its factorization.

102021011212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547977345 (or 2547977341 counting only the distinct ones).

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

Adding to 102021011212120 its reverse (21212110120201), we get a palindrome (123233121332321).

The spelling of 102021011212120 in words is "one hundred two trillion, twenty-one billion, eleven million, two hundred twelve thousand, one hundred twenty".