1212069772 has 6 divisors (see below), whose sum is σ = 2121122108. Its totient is φ = 606034884.

The previous prime is 1212069769. The next prime is 1212069809. The reversal of 1212069772 is 2779602121.

It is a super-2 number, since 2×1212069772² = 2938226264392263968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151508718 + ... + 151508725.

Almost surely, 2^1212069772 is an apocalyptic number.

It is an amenable number.

1212069772 is a deficient number, since it is larger than the sum of its proper divisors (909052336).

1212069772 is a wasteful number, since it uses less digits than its factorization.

1212069772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303017447 (or 303017445 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 1212069772 is about 34814.7924308045. The cubic root of 1212069772 is about 1066.2094811998.

The spelling of 1212069772 in words is "one billion, two hundred twelve million, sixty-nine thousand, seven hundred seventy-two".