1222651105 has 32 divisors (see below), whose sum is σ = 1598446080. Its totient is φ = 892442880.

The previous prime is 1222651093. The next prime is 1222651109. The reversal of 1222651105 is 5011562221.

It is not a de Polignac number, because 1222651105 - 2⁹ = 1222650593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222651105.

It is not an unprimeable number, because it can be changed into a prime (1222651109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3277699 + ... + 3278071.

It is an arithmetic number, because the mean of its divisors is an integer number (49951440).

Almost surely, 2^1222651105 is an apocalyptic number.

It is an amenable number.

1222651105 is a deficient number, since it is larger than the sum of its proper divisors (375794975).

1222651105 is a wasteful number, since it uses less digits than its factorization.

1222651105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1222651105 is about 34966.4282562575. The cubic root of 1222651105 is about 1069.3031550310.

The spelling of 1222651105 in words is "one billion, two hundred twenty-two million, six hundred fifty-one thousand, one hundred five".