222106020500 has 384 divisors, whose sum is σ = 625746401280. Its totient is φ = 66938572800.

The previous prime is 222106020491. The next prime is 222106020511. The reversal of 222106020500 is 5020601222.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 390344216 + ... + 390344784.

It is an arithmetic number, because the mean of its divisors is an integer number (1629547920).

Almost surely, 2^222106020500 is an apocalyptic number.

222106020500 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 222106020500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312873200640).

222106020500 is an abundant number, since it is smaller than the sum of its proper divisors (403640380780).

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

222106020500 is a wasteful number, since it uses less digits than its factorization.

222106020500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 222106020500 its reverse (5020601222), we get a palindrome (227126621722).

The spelling of 222106020500 in words is "two hundred twenty-two billion, one hundred six million, twenty thousand, five hundred".