1210101220211 has 16 divisors (see below), whose sum is σ = 1307887526400. Its totient is φ = 1112992278048.

The previous prime is 1210101220199. The next prime is 1210101220241. The reversal of 1210101220211 is 1120221010121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210101220211 is a prime.

It is a super-2 number, since 2×1210101220211² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1210101220241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5000960 + ... + 5237346.

It is an arithmetic number, because the mean of its divisors is an integer number (81742970400).

Almost surely, 2^{1210101220211} is an apocalyptic number.

1210101220211 is a deficient number, since it is larger than the sum of its proper divisors (97786306189).

1210101220211 is a wasteful number, since it uses less digits than its factorization.

1210101220211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237818.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1210101220211 its reverse (1120221010121), we get a palindrome (2330322230332).

The spelling of 1210101220211 in words is "one trillion, two hundred ten billion, one hundred one million, two hundred twenty thousand, two hundred eleven".