20022201001000 has 512 divisors, whose sum is σ = 52925148057600. Its totient is φ = 7027762560000.

The previous prime is 20022201000911. The next prime is 20022201001001. The reversal of 20022201001000 is 10010222002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20022201001001) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 13501146259 + ... + 13501147741.

It is an arithmetic number, because the mean of its divisors is an integer number (103369429800).

Almost surely, 2^{20022201001000} is an apocalyptic number.

20022201001000 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 20022201001000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26462574028800).

20022201001000 is an abundant number, since it is smaller than the sum of its proper divisors (32902947056600).

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

20022201001000 is a wasteful number, since it uses less digits than its factorization.

20022201001000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938 (or 1924 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20022201001000 its reverse (10010222002), we get a palindrome (20032211223002).

The spelling of 20022201001000 in words is "twenty trillion, twenty-two billion, two hundred one million, one thousand".