1121211010210 has 8 divisors (see below), whose sum is σ = 2018179818396. Its totient is φ = 448484404080.

The previous prime is 1121211010169. The next prime is 1121211010217. The reversal of 1121211010210 is 120101121211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1027082929401 + 94128080809 = 1013451^2 + 306803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1121211010210² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1121211010217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56060550501 + ... + 56060550520.

Almost surely, 2^{1121211010210} is an apocalyptic number.

1121211010210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121211010210 is a deficient number, since it is larger than the sum of its proper divisors (896968808186).

1121211010210 is a wasteful number, since it uses less digits than its factorization.

1121211010210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112121101028.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1121211010210 its reverse (120101121211), we get a palindrome (1241312131421).

The spelling of 1121211010210 in words is "one trillion, one hundred twenty-one billion, two hundred eleven million, ten thousand, two hundred ten".