222101022021020 has 24 divisors (see below), whose sum is σ = 466420527795264. Its totient is φ = 88838812322496.

The previous prime is 222101022020921. The next prime is 222101022021023. The reversal of 222101022021020 is 20120220101222.

It is a happy number.

It is a super-2 number, since 2×222101022021020² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222101022021020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101022021023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98639279 + ... + 100865798.

It is an arithmetic number, because the mean of its divisors is an integer number (19434188658136).

Almost surely, 2^{222101022021020} is an apocalyptic number.

222101022021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222101022021020 is an abundant number, since it is smaller than the sum of its proper divisors (244319505774244).

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

222101022021020 is a wasteful number, since it uses less digits than its factorization.

222101022021020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199560749 (or 199560747 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222101022021020 its reverse (20120220101222), we get a palindrome (242221242122242).

The spelling of 222101022021020 in words is "two hundred twenty-two trillion, one hundred one billion, twenty-two million, twenty-one thousand, twenty".