1211010011210 has 32 divisors (see below), whose sum is σ = 2187769509072. Its totient is φ = 482637783040.

The previous prime is 1211010011191. The next prime is 1211010011213. The reversal of 1211010011210 is 121100101121.

It can be written as a sum of positive squares in 8 ways, for example, as 950100522361 + 260909488849 = 974731^2 + 510793^2 .

It is a super-3 number, since 3×1211010011210³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211010011191 and 1211010011200.

It is not an unprimeable number, because it can be changed into a prime (1211010011213) by changing a digit.

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, 13083212 + ... + 13175448.

Almost surely, 2^{1211010011210} is an apocalyptic number.

1211010011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211010011210 is a deficient number, since it is larger than the sum of its proper divisors (976759497862).

1211010011210 is a wasteful number, since it uses less digits than its factorization.

1211010011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97018.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1211010011210 its reverse (121100101121), we get a palindrome (1332110112331).

The spelling of 1211010011210 in words is "one trillion, two hundred eleven billion, ten million, eleven thousand, two hundred ten".