201222122000020 has 96 divisors (see below), whose sum is σ = 461300658698880. Its totient is φ = 73121052426240.

The previous prime is 201222122000017. The next prime is 201222122000069. The reversal of 201222122000020 is 20000221222102.

It is a junction number, because it is equal to n+sod(n) for n = 201222121999958 and 201222122000003.

It is a congruent number.

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, 1916585967 + ... + 1916690953.

It is an arithmetic number, because the mean of its divisors is an integer number (4805215194780).

Almost surely, 2^{201222122000020} is an apocalyptic number.

201222122000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201222122000020 is an abundant number, since it is smaller than the sum of its proper divisors (260078536698860).

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

201222122000020 is a wasteful number, since it uses less digits than its factorization.

201222122000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110953 (or 110951 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 201222122000020 its reverse (20000221222102), we get a palindrome (221222343222122).

The spelling of 201222122000020 in words is "two hundred one trillion, two hundred twenty-two billion, one hundred twenty-two million, twenty", and thus it is an aban number.