1021202211211 has 32 divisors (see below), whose sum is σ = 1270217768960. Its totient is φ = 799434510336.

The previous prime is 1021202211167. The next prime is 1021202211223. The reversal of 1021202211211 is 1121122021201.

It is not a de Polignac number, because 1021202211211 - 2²⁷ = 1021067993483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021202211241) 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 31 ways as a sum of consecutive naturals, for example, 4121035 + ... + 4361803.

It is an arithmetic number, because the mean of its divisors is an integer number (39694305280).

Almost surely, 2^{1021202211211} is an apocalyptic number.

1021202211211 is a deficient number, since it is larger than the sum of its proper divisors (249015557749).

1021202211211 is a wasteful number, since it uses less digits than its factorization.

1021202211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241283.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1021202211211 its reverse (1121122021201), we get a palindrome (2142324232412).

The spelling of 1021202211211 in words is "one trillion, twenty-one billion, two hundred two million, two hundred eleven thousand, two hundred eleven".