21211214083 has 2 divisors, whose sum is σ = 21211214084. Its totient is φ = 21211214082.

The previous prime is 21211214071. The next prime is 21211214113. The reversal of 21211214083 is 38041211212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21211214083 - 2²⁵ = 21177659651 is a prime.

It is not a weakly prime, because it can be changed into another prime (21211214033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10605607041 + 10605607042.

It is an arithmetic number, because the mean of its divisors is an integer number (10605607042).

Almost surely, 2^21211214083 is an apocalyptic number.

21211214083 is a deficient number, since it is larger than the sum of its proper divisors (1).

21211214083 is an equidigital number, since it uses as much as digits as its factorization.

21211214083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 21211214083 its reverse (38041211212), we get a palindrome (59252425295).

The spelling of 21211214083 in words is "twenty-one billion, two hundred eleven million, two hundred fourteen thousand, eighty-three".