22220011021000 has 128 divisors (see below), whose sum is σ = 56004975936000. Its totient is φ = 8202766252800.

The previous prime is 22220011020943. The next prime is 22220011021037. The reversal of 22220011021000 is 12011002222.

It is a happy number.

It is a super-2 number, since 2×22220011021000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70028709 + ... + 70345291.

It is an arithmetic number, because the mean of its divisors is an integer number (437538874500).

Almost surely, 2^{22220011021000} is an apocalyptic number.

22220011021000 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 22220011021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28002487968000).

22220011021000 is an abundant number, since it is smaller than the sum of its proper divisors (33784964915000).

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

22220011021000 is a wasteful number, since it uses less digits than its factorization.

22220011021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322016 (or 322002 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22220011021000 its reverse (12011002222), we get a palindrome (22232022023222).

The spelling of 22220011021000 in words is "twenty-two trillion, two hundred twenty billion, eleven million, twenty-one thousand".