1202100072 has 32 divisors (see below), whose sum is σ = 3013202400. Its totient is φ = 399639744.

The previous prime is 1202100071. The next prime is 1202100089. The reversal of 1202100072 is 2700012021.

It is not an unprimeable number, because it can be changed into a prime (1202100071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56983 + ... + 75174.

It is an arithmetic number, because the mean of its divisors is an integer number (94162575).

Almost surely, 2^1202100072 is an apocalyptic number.

1202100072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202100072 is an abundant number, since it is smaller than the sum of its proper divisors (1811102328).

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

1202100072 is a wasteful number, since it uses less digits than its factorization.

1202100072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132545 (or 132541 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 1202100072 is about 34671.3148294091. The cubic root of 1202100072 is about 1063.2781133284.

Adding to 1202100072 its reverse (2700012021), we get a palindrome (3902112093).

The spelling of 1202100072 in words is "one billion, two hundred two million, one hundred thousand, seventy-two".