10203512210 has 16 divisors (see below), whose sum is σ = 18398163096. Its totient is φ = 4074329088.

The previous prime is 10203512203. The next prime is 10203512219. The reversal of 10203512210 is 1221530201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9791300401 + 412211809 = 98951^2 + 20303^2 .

It is a super-2 number, since 2×10203512210² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10203512219) 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, 878417 + ... + 889956.

Almost surely, 2^10203512210 is an apocalyptic number.

10203512210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10203512210 is a deficient number, since it is larger than the sum of its proper divisors (8194650886).

10203512210 is a wasteful number, since it uses less digits than its factorization.

10203512210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768957.

The product of its (nonzero) digits is 120, while the sum is 17.

The spelling of 10203512210 in words is "ten billion, two hundred three million, five hundred twelve thousand, two hundred ten".