222011011021020 has 96 divisors (see below), whose sum is σ = 673318232500032. Its totient is φ = 54332974829568.

The previous prime is 222011011021013. The next prime is 222011011021049. The reversal of 222011011021020 is 20120110110222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 822493677 + ... + 822763556.

It is an arithmetic number, because the mean of its divisors is an integer number (7013731588542).

Almost surely, 2^{222011011021020} is an apocalyptic number.

222011011021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222011011021020 is an abundant number, since it is smaller than the sum of its proper divisors (451307221479012).

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

222011011021020 is a wasteful number, since it uses less digits than its factorization.

222011011021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645257431 (or 1645257429 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222011011021020 its reverse (20120110110222), we get a palindrome (242131121131242).

The spelling of 222011011021020 in words is "two hundred twenty-two trillion, eleven billion, eleven million, twenty-one thousand, twenty".