1212122465 has 8 divisors (see below), whose sum is σ = 1454735040. Its totient is φ = 969572592.

The previous prime is 1212122459. The next prime is 1212122467. The reversal of 1212122465 is 5642212121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212122465 - 2⁴ = 1212122449 is a prime.

It is a super-3 number, since 3×1212122465³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212122467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60662 + ... + 78128.

It is an arithmetic number, because the mean of its divisors is an integer number (181841880).

Almost surely, 2^1212122465 is an apocalyptic number.

It is an amenable number.

1212122465 is a deficient number, since it is larger than the sum of its proper divisors (242612575).

1212122465 is a wasteful number, since it uses less digits than its factorization.

1212122465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31351.

The product of its digits is 1920, while the sum is 26.

The square root of 1212122465 is about 34815.5491842366. The cubic root of 1212122465 is about 1066.2249316201.

Adding to 1212122465 its reverse (5642212121), we get a palindrome (6854334586).

The spelling of 1212122465 in words is "one billion, two hundred twelve million, one hundred twenty-two thousand, four hundred sixty-five".