1000212121210 has 16 divisors (see below), whose sum is σ = 1906286631336. Its totient is φ = 376550445568.

The previous prime is 1000212121189. The next prime is 1000212121243. The reversal of 1000212121210 is 121212120001.

1000212121210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 998742395641 + 1469725569 = 999371^2 + 38337^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2941800187 + ... + 2941800526.

Almost surely, 2^{1000212121210} is an apocalyptic number.

1000212121210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000212121210 is a deficient number, since it is larger than the sum of its proper divisors (906074510126).

1000212121210 is a wasteful number, since it uses less digits than its factorization.

1000212121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5883600737.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1000212121210 its reverse (121212120001), we get a palindrome (1121424241211).

The spelling of 1000212121210 in words is "one trillion, two hundred twelve million, one hundred twenty-one thousand, two hundred ten".