102001022210 has 64 divisors (see below), whose sum is σ = 201197818080. Its totient is φ = 37077319680.

The previous prime is 102001022203. The next prime is 102001022243. The reversal of 102001022210 is 12220100201.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 637108081 + 101363914129 = 25241^2 + 318377^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102001022191 and 102001022200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 600656 + ... + 751524.

Almost surely, 2^102001022210 is an apocalyptic number.

102001022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102001022210 is a deficient number, since it is larger than the sum of its proper divisors (99196795870).

102001022210 is a wasteful number, since it uses less digits than its factorization.

102001022210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151031.

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

Adding to 102001022210 its reverse (12220100201), we get a palindrome (114221122411).

The spelling of 102001022210 in words is "one hundred two billion, one million, twenty-two thousand, two hundred ten".