102002111211220 has 24 divisors (see below), whose sum is σ = 233677563866208. Its totient is φ = 37091676804000.

The previous prime is 102002111211193. The next prime is 102002111211227. The reversal of 102002111211220 is 22112111200201.

It is a junction number, because it is equal to n+sod(n) for n = 102002111211194 and 102002111211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002111211227) 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, 231822979806 + ... + 231822980245.

It is an arithmetic number, because the mean of its divisors is an integer number (9736565161092).

Almost surely, 2^{102002111211220} is an apocalyptic number.

102002111211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102002111211220 is an abundant number, since it is smaller than the sum of its proper divisors (131675452654988).

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

102002111211220 is a wasteful number, since it uses less digits than its factorization.

102002111211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463645960071 (or 463645960069 counting only the distinct ones).

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

Adding to 102002111211220 its reverse (22112111200201), we get a palindrome (124114222411421).

The spelling of 102002111211220 in words is "one hundred two trillion, two billion, one hundred eleven million, two hundred eleven thousand, two hundred twenty".