228911219020 has 48 divisors (see below), whose sum is σ = 524552910336. Its totient is φ = 83218520000.

The previous prime is 228911218897. The next prime is 228911219027. The reversal of 228911219020 is 20912119822.

It is not an unprimeable number, because it can be changed into a prime (228911219027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 712125 + ... + 982315.

It is an arithmetic number, because the mean of its divisors is an integer number (10928185632).

Almost surely, 2^228911219020 is an apocalyptic number.

228911219020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228911219020 is an abundant number, since it is smaller than the sum of its proper divisors (295641691316).

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

228911219020 is a wasteful number, since it uses less digits than its factorization.

228911219020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274062 (or 274060 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 37.

It can be divided in two parts, 228911 and 219020, that added together give a triangular number (447931 = T₉₄₆).

The spelling of 228911219020 in words is "two hundred twenty-eight billion, nine hundred eleven million, two hundred nineteen thousand, twenty".