1222946290 has 8 divisors (see below), whose sum is σ = 2201303340. Its totient is φ = 489178512.

The previous prime is 1222946287. The next prime is 1222946303. The reversal of 1222946290 is 926492221.

It can be written as a sum of positive squares in 2 ways, for example, as 1194462721 + 28483569 = 34561^2 + 5337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61147305 + ... + 61147324.

Almost surely, 2^1222946290 is an apocalyptic number.

1222946290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1222946290 is a deficient number, since it is larger than the sum of its proper divisors (978357050).

1222946290 is a wasteful number, since it uses less digits than its factorization.

1222946290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122294636.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1222946290 is about 34970.6489788222. The cubic root of 1222946290 is about 1069.3892021604.

It can be divided in two parts, 1222946 and 290, that added together give a square (1223236 = 1106²).

The spelling of 1222946290 in words is "one billion, two hundred twenty-two million, nine hundred forty-six thousand, two hundred ninety".