2721201000 has 128 divisors (see below), whose sum is σ = 9703100160. Its totient is φ = 621984000.

The previous prime is 2721200969. The next prime is 2721201017. The reversal of 2721201000 is 1021272.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43791 + ... + 85790.

It is an arithmetic number, because the mean of its divisors is an integer number (75805470).

Almost surely, 2^2721201000 is an apocalyptic number.

2721201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2721201000 is an abundant number, since it is smaller than the sum of its proper divisors (6981899160).

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

2721201000 is a wasteful number, since it uses less digits than its factorization.

2721201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129612 (or 129598 counting only the distinct ones).

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

The square root of 2721201000 is about 52165.1320328052. The cubic root of 2721201000 is about 1396.1118305719. Note that the first 3 decimals are identical.

Adding to 2721201000 its reverse (1021272), we get a palindrome (2722222272).

The spelling of 2721201000 in words is "two billion, seven hundred twenty-one million, two hundred one thousand".