10012001001210 has 48 divisors (see below), whose sum is σ = 28033602806664. Its totient is φ = 2464492553856.

The previous prime is 10012001001187. The next prime is 10012001001217. The reversal of 10012001001210 is 1210010021001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7041683182689 + 2970317818521 = 2653617^2 + 1723461^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 10012001001192 and 10012001001201.

It is not an unprimeable number, because it can be changed into a prime (10012001001217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4278631737 + ... + 4278634076.

Almost surely, 2^{10012001001210} is an apocalyptic number.

10012001001210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10012001001210 is an abundant number, since it is smaller than the sum of its proper divisors (18021601805454).

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

10012001001210 is a wasteful number, since it uses less digits than its factorization.

10012001001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8557265839 (or 8557265836 counting only the distinct ones).

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

Adding to 10012001001210 its reverse (1210010021001), we get a palindrome (11222011022211).

The spelling of 10012001001210 in words is "ten trillion, twelve billion, one million, one thousand, two hundred ten".