1021120020211 has 2 divisors, whose sum is σ = 1021120020212. Its totient is φ = 1021120020210.

The previous prime is 1021120020139. The next prime is 1021120020229. The reversal of 1021120020211 is 1120200211201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021120020211 - 2¹⁵ = 1021119987443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021120020191 and 1021120020200.

It is not a weakly prime, because it can be changed into another prime (1021120020511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510560010105 + 510560010106.

It is an arithmetic number, because the mean of its divisors is an integer number (510560010106).

Almost surely, 2^{1021120020211} is an apocalyptic number.

1021120020211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021120020211 is an equidigital number, since it uses as much as digits as its factorization.

1021120020211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1021120020211 its reverse (1120200211201), we get a palindrome (2141320231412).

The spelling of 1021120020211 in words is "one trillion, twenty-one billion, one hundred twenty million, twenty thousand, two hundred eleven".