20021021030 has 8 divisors (see below), whose sum is σ = 36037837872. Its totient is φ = 8008408408.

The previous prime is 20021021021. The next prime is 20021021087. The reversal of 20021021030 is 3012012002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 1001051042 + ... + 1001051061.

It is an arithmetic number, because the mean of its divisors is an integer number (4504729734).

Almost surely, 2^20021021030 is an apocalyptic number.

20021021030 is a deficient number, since it is larger than the sum of its proper divisors (16016816842).

20021021030 is a wasteful number, since it uses less digits than its factorization.

20021021030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002102110.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20021021030 its reverse (3012012002), we get a palindrome (23033033032).

The spelling of 20021021030 in words is "twenty billion, twenty-one million, twenty-one thousand, thirty".