102120021020010 has 64 divisors (see below), whose sum is σ = 280105133432832. Its totient is φ = 23341343727936.

The previous prime is 102120021019997. The next prime is 102120021020023. The reversal of 102120021020010 is 10020120021201.

It is an interprime number because it is at equal distance from previous prime (102120021019997) and next prime (102120021020023).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9285589 + ... + 17042951.

It is an arithmetic number, because the mean of its divisors is an integer number (4376642709888).

Almost surely, 2^{102120021020010} is an apocalyptic number.

102120021020010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102120021020010 is an abundant number, since it is smaller than the sum of its proper divisors (177985112412822).

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

102120021020010 is a wasteful number, since it uses less digits than its factorization.

102120021020010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7820067.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102120021020010 its reverse (10020120021201), we get a palindrome (112140141041211).

The spelling of 102120021020010 in words is "one hundred two trillion, one hundred twenty billion, twenty-one million, twenty thousand, ten".