1225206044 has 12 divisors (see below), whose sum is σ = 2237332944. Its totient is φ = 585968064.

The previous prime is 1225206041. The next prime is 1225206061. The reversal of 1225206044 is 4406025221.

It is a super-2 number, since 2×1225206044² = 3002259700508259872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225206041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6658637 + ... + 6658820.

It is an arithmetic number, because the mean of its divisors is an integer number (186444412).

Almost surely, 2^1225206044 is an apocalyptic number.

It is an amenable number.

1225206044 is a deficient number, since it is larger than the sum of its proper divisors (1012126900).

1225206044 is a wasteful number, since it uses less digits than its factorization.

1225206044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13317484 (or 13317482 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1225206044 is about 35002.9433619517. The cubic root of 1225206044 is about 1070.0474675422.

The spelling of 1225206044 in words is "one billion, two hundred twenty-five million, two hundred six thousand, forty-four".