1222212096 has 180 divisors, whose sum is σ = 4104044802. Its totient is φ = 349138944.

The previous prime is 1222212077. The next prime is 1222212097. The reversal of 1222212096 is 6902122221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1151652096 + 70560000 = 33936^2 + 8400^2 .

It is not an unprimeable number, because it can be changed into a prime (1222212097) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 223086 + ... + 228498.

Almost surely, 2^1222212096 is an apocalyptic number.

1222212096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222212096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2052022401).

1222212096 is an abundant number, since it is smaller than the sum of its proper divisors (2881832706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1222212096 is an equidigital number, since it uses as much as digits as its factorization.

1222212096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5451 (or 5425 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1222212096 is about 34960.1501140942. The cubic root of 1222212096 is about 1069.1751572445.

The spelling of 1222212096 in words is "one billion, two hundred twenty-two million, two hundred twelve thousand, ninety-six".