102001213210 has 16 divisors (see below), whose sum is σ = 197725428936. Its totient is φ = 37661986368.

The previous prime is 102001213201. The next prime is 102001213217. The reversal of 102001213210 is 12312100201.

It can be written as a sum of positive squares in 4 ways, for example, as 74776543209 + 27224670001 = 273453^2 + 164999^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (102001213217) 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, 392312229 + ... + 392312488.

Almost surely, 2^102001213210 is an apocalyptic number.

102001213210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102001213210 is a deficient number, since it is larger than the sum of its proper divisors (95724215726).

102001213210 is a wasteful number, since it uses less digits than its factorization.

102001213210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784624737.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 102001213210 its reverse (12312100201), we get a palindrome (114313313411).

The spelling of 102001213210 in words is "one hundred two billion, one million, two hundred thirteen thousand, two hundred ten".