1222551046 has 4 divisors (see below), whose sum is σ = 1833826572. Its totient is φ = 611275522.

The previous prime is 1222551041. The next prime is 1222551049. The reversal of 1222551046 is 6401552221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6401552221 = 127 ⋅50405923.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222551041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305637760 + ... + 305637763.

It is an arithmetic number, because the mean of its divisors is an integer number (458456643).

Almost surely, 2^1222551046 is an apocalyptic number.

1222551046 is a deficient number, since it is larger than the sum of its proper divisors (611275526).

1222551046 is an equidigital number, since it uses as much as digits as its factorization.

1222551046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611275525.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1222551046 is about 34964.9974402973. The cubic root of 1222551046 is about 1069.2739844517.

The spelling of 1222551046 in words is "one billion, two hundred twenty-two million, five hundred fifty-one thousand, forty-six".