1211021101883 has 2 divisors, whose sum is σ = 1211021101884. Its totient is φ = 1211021101882.

The previous prime is 1211021101867. The next prime is 1211021101931. The reversal of 1211021101883 is 3881011201121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1211021101883 - 2⁴ = 1211021101867 is a prime.

It is a super-2 number, since 2×1211021101883² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1211021101183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605510550941 + 605510550942.

It is an arithmetic number, because the mean of its divisors is an integer number (605510550942).

Almost surely, 2^{1211021101883} is an apocalyptic number.

1211021101883 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211021101883 is an equidigital number, since it uses as much as digits as its factorization.

1211021101883 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 29.

The spelling of 1211021101883 in words is "one trillion, two hundred eleven billion, twenty-one million, one hundred one thousand, eight hundred eighty-three".