101201001210 has 32 divisors (see below), whose sum is σ = 269869337280. Its totient is φ = 26986933584.

The previous prime is 101201001151. The next prime is 101201001221. The reversal of 101201001210 is 12100102101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101201001192 and 101201001201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187408992 + ... + 187409531.

It is an arithmetic number, because the mean of its divisors is an integer number (8433416790).

Almost surely, 2^101201001210 is an apocalyptic number.

101201001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101201001210 is an abundant number, since it is smaller than the sum of its proper divisors (168668336070).

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

101201001210 is a wasteful number, since it uses less digits than its factorization.

101201001210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374818539 (or 374818533 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101201001210 its reverse (12100102101), we get a palindrome (113301103311).

The spelling of 101201001210 in words is "one hundred one billion, two hundred one million, one thousand, two hundred ten".