21060200620 has 12 divisors (see below), whose sum is σ = 44226421344. Its totient is φ = 8424080240.

The previous prime is 21060200611. The next prime is 21060200621. The reversal of 21060200620 is 2600206012.

It is not an unprimeable number, because it can be changed into a prime (21060200621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 526504996 + ... + 526505035.

It is an arithmetic number, because the mean of its divisors is an integer number (3685535112).

Almost surely, 2^21060200620 is an apocalyptic number.

21060200620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21060200620 is an abundant number, since it is smaller than the sum of its proper divisors (23166220724).

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

21060200620 is a wasteful number, since it uses less digits than its factorization.

21060200620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053010040 (or 1053010038 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21060200620 its reverse (2600206012), we get a palindrome (23660406632).

The spelling of 21060200620 in words is "twenty-one billion, sixty million, two hundred thousand, six hundred twenty".