222021122203100 has 432 divisors, whose sum is σ = 562804198475904. Its totient is φ = 75348710976000.

The previous prime is 222021122203087. The next prime is 222021122203117. The reversal of 222021122203100 is 1302221120222.

It is a super-2 number, since 2×222021122203100² (a number of 29 digits) contains 22 as substring.

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 143 ways as a sum of consecutive naturals, for example, 26548019519 + ... + 26548027881.

It is an arithmetic number, because the mean of its divisors is an integer number (1302787496472).

Almost surely, 2^{222021122203100} is an apocalyptic number.

222021122203100 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 222021122203100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281402099237952).

222021122203100 is an abundant number, since it is smaller than the sum of its proper divisors (340783076272804).

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

222021122203100 is a wasteful number, since it uses less digits than its factorization.

222021122203100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9538 (or 9508 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 222021122203100 its reverse (1302221120222), we get a palindrome (223323343323322).

The spelling of 222021122203100 in words is "two hundred twenty-two trillion, twenty-one billion, one hundred twenty-two million, two hundred three thousand, one hundred".