1264420222 has 16 divisors (see below), whose sum is σ = 2043184752. Its totient is φ = 583390080.

The previous prime is 1264420217. The next prime is 1264420229. The reversal of 1264420222 is 2220244621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264420229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104533 + ... + 115999.

It is an arithmetic number, because the mean of its divisors is an integer number (127699047).

Almost surely, 2^1264420222 is an apocalyptic number.

1264420222 is a deficient number, since it is larger than the sum of its proper divisors (778764530).

1264420222 is a wasteful number, since it uses less digits than its factorization.

1264420222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15723.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1264420222 is about 35558.6870117557. The cubic root of 1264420222 is about 1081.3438410006.

Adding to 1264420222 its reverse (2220244621), we get a palindrome (3484664843).

The spelling of 1264420222 in words is "one billion, two hundred sixty-four million, four hundred twenty thousand, two hundred twenty-two".