102001221010 has 32 divisors (see below), whose sum is σ = 197745472512. Its totient is φ = 37658174400.

The previous prime is 102001220983. The next prime is 102001221013. The reversal of 102001221010 is 10122100201.

102001221010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (102001221013) 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, 1467667 + ... + 1535593.

It is an arithmetic number, because the mean of its divisors is an integer number (6179546016).

Almost surely, 2^102001221010 is an apocalyptic number.

102001221010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102001221010 is a deficient number, since it is larger than the sum of its proper divisors (95744251502).

102001221010 is a wasteful number, since it uses less digits than its factorization.

102001221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79498.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102001221010 its reverse (10122100201), we get a palindrome (112123321211).

The spelling of 102001221010 in words is "one hundred two billion, one million, two hundred twenty-one thousand, ten".