1021212107 has 2 divisors, whose sum is σ = 1021212108. Its totient is φ = 1021212106.

The previous prime is 1021212091. The next prime is 1021212113. The reversal of 1021212107 is 7012121201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021212107 - 2⁴ = 1021212091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021212187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510606053 + 510606054.

It is an arithmetic number, because the mean of its divisors is an integer number (510606054).

Almost surely, 2^1021212107 is an apocalyptic number.

1021212107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021212107 is an equidigital number, since it uses as much as digits as its factorization.

1021212107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 1021212107 is about 31956.4094822932. The cubic root of 1021212107 is about 1007.0212884620.

Adding to 1021212107 its reverse (7012121201), we get a palindrome (8033333308).

The spelling of 1021212107 in words is "one billion, twenty-one million, two hundred twelve thousand, one hundred seven".