102211320220 has 24 divisors (see below), whose sum is σ = 217360785600. Its totient is φ = 40367001792.

The previous prime is 102211320209. The next prime is 102211320223. The reversal of 102211320220 is 22023112201.

It is a happy number.

It is a super-2 number, since 2×102211320220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102211320194 and 102211320203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211320223) 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, 32343775 + ... + 32346934.

It is an arithmetic number, because the mean of its divisors is an integer number (9056699400).

Almost surely, 2^102211320220 is an apocalyptic number.

102211320220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102211320220 is an abundant number, since it is smaller than the sum of its proper divisors (115149465380).

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

102211320220 is a wasteful number, since it uses less digits than its factorization.

102211320220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64690797 (or 64690795 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102211320220 its reverse (22023112201), we get a palindrome (124234432421).

The spelling of 102211320220 in words is "one hundred two billion, two hundred eleven million, three hundred twenty thousand, two hundred twenty".