102102101211220 has 48 divisors (see below), whose sum is σ = 233912691891648. Its totient is φ = 37127074895360.

The previous prime is 102102101211203. The next prime is 102102101211233. The reversal of 102102101211220 is 22112101201201.

It is a junction number, because it is equal to n+sod(n) for n = 102102101211194 and 102102101211203.

It is a congruent 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, 2526492 + ... + 14511628.

It is an arithmetic number, because the mean of its divisors is an integer number (4873181081076).

Almost surely, 2^{102102101211220} is an apocalyptic number.

102102101211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102102101211220 is an abundant number, since it is smaller than the sum of its proper divisors (131810590680428).

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

102102101211220 is a wasteful number, since it uses less digits than its factorization.

102102101211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12023880 (or 12023878 counting only the distinct ones).

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

Adding to 102102101211220 its reverse (22112101201201), we get a palindrome (124214202412421).

The spelling of 102102101211220 in words is "one hundred two trillion, one hundred two billion, one hundred one million, two hundred eleven thousand, two hundred twenty".