1222020407 has 2 divisors, whose sum is σ = 1222020408. Its totient is φ = 1222020406.

The previous prime is 1222020379. The next prime is 1222020413. The reversal of 1222020407 is 7040202221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222020407 - 2¹⁴ = 1222004023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222020467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611010203 + 611010204.

It is an arithmetic number, because the mean of its divisors is an integer number (611010204).

Almost surely, 2^1222020407 is an apocalyptic number.

1222020407 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222020407 is an equidigital number, since it uses as much as digits as its factorization.

1222020407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 1222020407 is about 34957.4084708807. The cubic root of 1222020407 is about 1069.1192586453.

Adding to 1222020407 its reverse (7040202221), we get a palindrome (8262222628).

The spelling of 1222020407 in words is "one billion, two hundred twenty-two million, twenty thousand, four hundred seven".