1021202220011 has 16 divisors (see below), whose sum is σ = 1045655697600. Its totient is φ = 997072593408.

The previous prime is 1021202219927. The next prime is 1021202220043. The reversal of 1021202220011 is 1100222021201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021202220011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021202220911) 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, 3448145 + ... + 3732573.

It is an arithmetic number, because the mean of its divisors is an integer number (65353481100).

Almost surely, 2^{1021202220011} is an apocalyptic number.

1021202220011 is a deficient number, since it is larger than the sum of its proper divisors (24453477589).

1021202220011 is a wasteful number, since it uses less digits than its factorization.

1021202220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284998.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1021202220011 its reverse (1100222021201), we get a palindrome (2121424241212).

The spelling of 1021202220011 in words is "one trillion, twenty-one billion, two hundred two million, two hundred twenty thousand, eleven".