1201101072 has 20 divisors (see below), whose sum is σ = 3102844560. Its totient is φ = 400367008.

The previous prime is 1201101029. The next prime is 1201101089. The reversal of 1201101072 is 2701011021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12511422 + ... + 12511517.

It is an arithmetic number, because the mean of its divisors is an integer number (155142228).

Almost surely, 2^1201101072 is an apocalyptic number.

1201101072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201101072 is an abundant number, since it is smaller than the sum of its proper divisors (1901743488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201101072 is a wasteful number, since it uses less digits than its factorization.

1201101072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25022950 (or 25022944 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 15.

The square root of 1201101072 is about 34656.9051128343. The cubic root of 1201101072 is about 1062.9834874911.

Adding to 1201101072 its reverse (2701011021), we get a palindrome (3902112093).

The spelling of 1201101072 in words is "one billion, two hundred one million, one hundred one thousand, seventy-two".