1641612122 has 12 divisors (see below), whose sum is σ = 2598841386. Its totient is φ = 777605400.

The previous prime is 1641612113. The next prime is 1641612131. The reversal of 1641612122 is 2212161461.

It is an interprime number because it is at equal distance from previous prime (1641612113) and next prime (1641612131).

It can be written as a sum of positive squares in only one way, i.e., 1639359121 + 2253001 = 40489^2 + 1501^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1641612091 and 1641612100.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1136129 + ... + 1137572.

Almost surely, 2^1641612122 is an apocalyptic number.

1641612122 is a deficient number, since it is larger than the sum of its proper divisors (957229264).

1641612122 is a wasteful number, since it uses less digits than its factorization.

1641612122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273741 (or 2273722 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 1641612122 is about 40516.8128312186. The cubic root of 1641612122 is about 1179.6599906140.

Adding to 1641612122 its reverse (2212161461), we get a palindrome (3853773583).

The spelling of 1641612122 in words is "one billion, six hundred forty-one million, six hundred twelve thousand, one hundred twenty-two".