1225171270 has 8 divisors (see below), whose sum is σ = 2205308304. Its totient is φ = 490068504.

The previous prime is 1225171253. The next prime is 1225171303. The reversal of 1225171270 is 721715221.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61258554 + ... + 61258573.

It is an arithmetic number, because the mean of its divisors is an integer number (275663538).

Almost surely, 2^1225171270 is an apocalyptic number.

1225171270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225171270 is a deficient number, since it is larger than the sum of its proper divisors (980137034).

1225171270 is a wasteful number, since it uses less digits than its factorization.

1225171270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122517134.

The product of its (nonzero) digits is 1960, while the sum is 28.

The square root of 1225171270 is about 35002.4466287715. The cubic root of 1225171270 is about 1070.0373440252.

Adding to 1225171270 its reverse (721715221), we get a palindrome (1946886491).

It can be divided in two parts, 12251 and 71270, that added together give a 4-th power (83521 = 17⁴).

The spelling of 1225171270 in words is "one billion, two hundred twenty-five million, one hundred seventy-one thousand, two hundred seventy".