1021220211103 has 2 divisors, whose sum is σ = 1021220211104. Its totient is φ = 1021220211102.

The previous prime is 1021220211079. The next prime is 1021220211133. The reversal of 1021220211103 is 3011120221201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021220211103 - 2³⁷ = 883781257631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021220211133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510610105551 + 510610105552.

It is an arithmetic number, because the mean of its divisors is an integer number (510610105552).

Almost surely, 2^{1021220211103} is an apocalyptic number.

1021220211103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021220211103 is an equidigital number, since it uses as much as digits as its factorization.

1021220211103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1021220211103 its reverse (3011120221201), we get a palindrome (4032340432304).

The spelling of 1021220211103 in words is "one trillion, twenty-one billion, two hundred twenty million, two hundred eleven thousand, one hundred three".