1210101012211 has 24 divisors (see below), whose sum is σ = 1585628879904. Its totient is φ = 901122393600.

The previous prime is 1210101012167. The next prime is 1210101012233. The reversal of 1210101012211 is 1122101010121.

It is a happy number.

It is not a de Polignac number, because 1210101012211 - 2¹¹ = 1210101010163 is a prime.

It is a super-2 number, since 2×1210101012211² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210101012191 and 1210101012200.

It is not an unprimeable number, because it can be changed into a prime (1210101012011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30065440 + ... + 30105661.

It is an arithmetic number, because the mean of its divisors is an integer number (66067869996).

Almost surely, 2^{1210101012211} is an apocalyptic number.

1210101012211 is a deficient number, since it is larger than the sum of its proper divisors (375527867693).

1210101012211 is a wasteful number, since it uses less digits than its factorization.

1210101012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60171151 (or 60171138 counting only the distinct ones).

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

Adding to 1210101012211 its reverse (1122101010121), we get a palindrome (2332202022332).

The spelling of 1210101012211 in words is "one trillion, two hundred ten billion, one hundred one million, twelve thousand, two hundred eleven".