1212422222 has 16 divisors (see below), whose sum is σ = 1985144112. Its totient is φ = 550773120.

The previous prime is 1212422213. The next prime is 1212422231. The reversal of 1212422222 is 2222242121.

It is an interprime number because it is at equal distance from previous prime (1212422213) and next prime (1212422231).

1212422222 is a modest number, since divided by 22222 gives 12124 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1212422194 and 1212422203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23588 + ... + 54600.

It is an arithmetic number, because the mean of its divisors is an integer number (124071507).

Almost surely, 2^1212422222 is an apocalyptic number.

1212422222 is a deficient number, since it is larger than the sum of its proper divisors (772721890).

1212422222 is a wasteful number, since it uses less digits than its factorization.

1212422222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32803.

The product of its digits is 512, while the sum is 20.

The square root of 1212422222 is about 34819.8538480563. The cubic root of 1212422222 is about 1066.3128165914.

Adding to 1212422222 its reverse (2222242121), we get a palindrome (3434664343).

The spelling of 1212422222 in words is "one billion, two hundred twelve million, four hundred twenty-two thousand, two hundred twenty-two".