102100200220 has 48 divisors (see below), whose sum is σ = 224982696960. Its totient is φ = 38846156096.

The previous prime is 102100200127. The next prime is 102100200221. The reversal of 102100200220 is 22002001201.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 102100200197 and 102100200206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100200221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537652 + ... + 702331.

It is an arithmetic number, because the mean of its divisors is an integer number (4687139520).

Almost surely, 2^102100200220 is an apocalyptic number.

102100200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102100200220 is an abundant number, since it is smaller than the sum of its proper divisors (122882496740).

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

102100200220 is a wasteful number, since it uses less digits than its factorization.

102100200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240194 (or 1240192 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 102100200220 its reverse (22002001201), we get a palindrome (124102201421).

The spelling of 102100200220 in words is "one hundred two billion, one hundred million, two hundred thousand, two hundred twenty".