20227103820 has 576 divisors, whose sum is σ = 79705866240. Its totient is φ = 4029350400.

The previous prime is 20227103807. The next prime is 20227103833. The reversal of 20227103820 is 2830172202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20227103807) and next prime (20227103833).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 76909009 + ... + 76909271.

It is an arithmetic number, because the mean of its divisors is an integer number (138378240).

Almost surely, 2^20227103820 is an apocalyptic number.

20227103820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20227103820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39852933120).

20227103820 is an abundant number, since it is smaller than the sum of its proper divisors (59478762420).

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

20227103820 is a wasteful number, since it uses less digits than its factorization.

20227103820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The spelling of 20227103820 in words is "twenty billion, two hundred twenty-seven million, one hundred three thousand, eight hundred twenty".