102002111020220 has 48 divisors (see below), whose sum is σ = 226807692366528. Its totient is φ = 38400287063040.

The previous prime is 102002111020177. The next prime is 102002111020223. The reversal of 102002111020220 is 22020111200201.

It is a junction number, because it is equal to n+sod(n) for n = 102002111020195 and 102002111020204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102002111020223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24283409 + ... + 28172471.

It is an arithmetic number, because the mean of its divisors is an integer number (4725160257636).

Almost surely, 2^{102002111020220} is an apocalyptic number.

102002111020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102002111020220 is an abundant number, since it is smaller than the sum of its proper divisors (124805581346308).

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

102002111020220 is a wasteful number, since it uses less digits than its factorization.

102002111020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966230 (or 3966228 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102002111020220 its reverse (22020111200201), we get a palindrome (124022222220421).

The spelling of 102002111020220 in words is "one hundred two trillion, two billion, one hundred eleven million, twenty thousand, two hundred twenty".