2000021215 has 16 divisors (see below), whose sum is σ = 2428570368. Its totient is φ = 1581094656.

The previous prime is 2000021207. The next prime is 2000021227. The reversal of 2000021215 is 5121200002.

It is a cyclic number.

It is not a de Polignac number, because 2000021215 - 2³ = 2000021207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000021195 and 2000021204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146209 + ... + 159301.

It is an arithmetic number, because the mean of its divisors is an integer number (151785648).

Almost surely, 2^2000021215 is an apocalyptic number.

2000021215 is a deficient number, since it is larger than the sum of its proper divisors (428549153).

2000021215 is a wasteful number, since it uses less digits than its factorization.

2000021215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13458.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 2000021215 is about 44721.5967402775. The cubic root of 2000021215 is about 1259.9255047500.

Adding to 2000021215 its reverse (5121200002), we get a palindrome (7121221217).

The spelling of 2000021215 in words is "two billion, twenty-one thousand, two hundred fifteen".