102211200020 has 48 divisors (see below), whose sum is σ = 216928393920. Its totient is φ = 40450251264.

The previous prime is 102211200011. The next prime is 102211200029. The reversal of 102211200020 is 20002112201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102211200011) and next prime (102211200029).

It is a junction number, because it is equal to n+sod(n) for n = 102211199974 and 102211200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211200029) 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, 1653836 + ... + 1714524.

It is an arithmetic number, because the mean of its divisors is an integer number (4519341540).

Almost surely, 2^102211200020 is an apocalyptic number.

102211200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102211200020 is an abundant number, since it is smaller than the sum of its proper divisors (114717193900).

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

102211200020 is a wasteful number, since it uses less digits than its factorization.

102211200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61592 (or 61590 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102211200020 its reverse (20002112201), we get a palindrome (122213312221).

The spelling of 102211200020 in words is "one hundred two billion, two hundred eleven million, two hundred thousand, twenty".