1225212310 has 16 divisors (see below), whose sum is σ = 2520436896. Its totient is φ = 420072768.

The previous prime is 1225212299. The next prime is 1225212341. The reversal of 1225212310 is 132125221.

It is a super-2 number, since 2×1225212310² = 3002290409151072200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8751447 + ... + 8751586.

It is an arithmetic number, because the mean of its divisors is an integer number (157527306).

Almost surely, 2^1225212310 is an apocalyptic number.

1225212310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1225212310 is an abundant number, since it is smaller than the sum of its proper divisors (1295224586).

1225212310 is a wasteful number, since it uses less digits than its factorization.

1225212310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17503047.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1225212310 is about 35003.0328685958. The cubic root of 1225212310 is about 1070.0492916996.

Adding to 1225212310 its reverse (132125221), we get a palindrome (1357337531).

The spelling of 1225212310 in words is "one billion, two hundred twenty-five million, two hundred twelve thousand, three hundred ten".