201001211200122 has 16 divisors (see below), whose sum is σ = 402045039117120. Its totient is φ = 66993300947232.

The previous prime is 201001211200121. The next prime is 201001211200123. The reversal of 201001211200122 is 221002112100102.

It is an interprime number because it is at equal distance from previous prime (201001211200121) and next prime (201001211200123).

It is not an unprimeable number, because it can be changed into a prime (201001211200121) 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, 1775635222 + ... + 1775748417.

It is an arithmetic number, because the mean of its divisors is an integer number (25127814944820).

Almost surely, 2^{201001211200122} is an apocalyptic number.

201001211200122 is an abundant number, since it is smaller than the sum of its proper divisors (201043827916998).

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

201001211200122 is a wasteful number, since it uses less digits than its factorization.

201001211200122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551393077.

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

Adding to 201001211200122 its reverse (221002112100102), we get a palindrome (422003323300224).

The spelling of 201001211200122 in words is "two hundred one trillion, one billion, two hundred eleven million, two hundred thousand, one hundred twenty-two".