1211402222 has 8 divisors (see below), whose sum is σ = 1817251200. Its totient is φ = 605651824.

The previous prime is 1211402177. The next prime is 1211402243. The reversal of 1211402222 is 2222041121.

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

It is a super-3 number, since 3×1211402222³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1211402222.

It is a congruent number.

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, 33779 + ... + 59697.

It is an arithmetic number, because the mean of its divisors is an integer number (227156400).

Almost surely, 2^1211402222 is an apocalyptic number.

1211402222 is a deficient number, since it is larger than the sum of its proper divisors (605848978).

1211402222 is a wasteful number, since it uses less digits than its factorization.

1211402222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49290.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1211402222 is about 34805.2039499843. The cubic root of 1211402222 is about 1066.0137062092.

Adding to 1211402222 its reverse (2222041121), we get a palindrome (3433443343).

The spelling of 1211402222 in words is "one billion, two hundred eleven million, four hundred two thousand, two hundred twenty-two".