102201111020 has 48 divisors (see below), whose sum is σ = 227301899328. Its totient is φ = 38466447360.

The previous prime is 102201110983. The next prime is 102201111059. The reversal of 102201111020 is 20111102201.

It is a junction number, because it is equal to n+sod(n) for n = 102201110992 and 102201111010.

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, 1469840 + ... + 1537800.

It is an arithmetic number, because the mean of its divisors is an integer number (4735456236).

Almost surely, 2^102201111020 is an apocalyptic number.

102201111020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102201111020 is an abundant number, since it is smaller than the sum of its proper divisors (125100788308).

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

102201111020 is a wasteful number, since it uses less digits than its factorization.

102201111020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72410 (or 72408 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102201111020 its reverse (20111102201), we get a palindrome (122312213221).

The spelling of 102201111020 in words is "one hundred two billion, two hundred one million, one hundred eleven thousand, twenty".