1220202122 has 8 divisors (see below), whose sum is σ = 1830758436. Its totient is φ = 609949312.

The previous prime is 1220202101. The next prime is 1220202143. The reversal of 1220202122 is 2212020221.

It is an interprime number because it is at equal distance from previous prime (1220202101) and next prime (1220202143).

It can be written as a sum of positive squares in 2 ways, for example, as 1106161081 + 114041041 = 33259^2 + 10679^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1220202097 and 1220202106.

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, 65543 + ... + 82074.

Almost surely, 2^1220202122 is an apocalyptic number.

1220202122 is a deficient number, since it is larger than the sum of its proper divisors (610556314).

1220202122 is a wasteful number, since it uses less digits than its factorization.

1220202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151752.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1220202122 is about 34931.3916413303. The cubic root of 1220202122 is about 1068.5887360068.

Adding to 1220202122 its reverse (2212020221), we get a palindrome (3432222343).

The spelling of 1220202122 in words is "one billion, two hundred twenty million, two hundred two thousand, one hundred twenty-two".