1022011213 has 2 divisors, whose sum is σ = 1022011214. Its totient is φ = 1022011212.

The previous prime is 1022011183. The next prime is 1022011247. The reversal of 1022011213 is 3121102201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 735657129 + 286354084 = 27123^2 + 16922^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022011213 - 2⁵ = 1022011181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1022011193 and 1022011202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022011283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511005606 + 511005607.

It is an arithmetic number, because the mean of its divisors is an integer number (511005607).

Almost surely, 2^1022011213 is an apocalyptic number.

It is an amenable number.

1022011213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022011213 is an equidigital number, since it uses as much as digits as its factorization.

1022011213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1022011213 is about 31968.9101002834. The cubic root of 1022011213 is about 1007.2838871721.

Adding to 1022011213 its reverse (3121102201), we get a palindrome (4143113414).

The spelling of 1022011213 in words is "one billion, twenty-two million, eleven thousand, two hundred thirteen".