1210211101010 has 8 divisors (see below), whose sum is σ = 2178379981836. Its totient is φ = 484084440400.

The previous prime is 1210211100997. The next prime is 1210211101039. The reversal of 1210211101010 is 101011120121.

It can be written as a sum of positive squares in 2 ways, for example, as 1168394531929 + 41816569081 = 1080923^2 + 204491^2 .

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

It is a super-2 number, since 2×1210211101010² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1210211100982 and 1210211101000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60510555041 + ... + 60510555060.

Almost surely, 2^{1210211101010} is an apocalyptic number.

1210211101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1210211101010 is a deficient number, since it is larger than the sum of its proper divisors (968168880826).

1210211101010 is a wasteful number, since it uses less digits than its factorization.

1210211101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121021110108.

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

Adding to 1210211101010 its reverse (101011120121), we get a palindrome (1311222221131).

The spelling of 1210211101010 in words is "one trillion, two hundred ten billion, two hundred eleven million, one hundred one thousand, ten".