201100121002 has 16 divisors (see below), whose sum is σ = 329759942400. Its totient is φ = 91218307840.

The previous prime is 201100120979. The next prime is 201100121021. The reversal of 201100121002 is 200121001102.

It is a self number, because there is not a number n which added to its sum of digits gives 201100121002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9531127 + ... + 9552202.

It is an arithmetic number, because the mean of its divisors is an integer number (20609996400).

Almost surely, 2^201100121002 is an apocalyptic number.

201100121002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201100121002 is a deficient number, since it is larger than the sum of its proper divisors (128659821398).

201100121002 is a wasteful number, since it uses less digits than its factorization.

201100121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19083821.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 201100121002 its reverse (200121001102), we get a palindrome (401221122104).

The spelling of 201100121002 in words is "two hundred one billion, one hundred million, one hundred twenty-one thousand, two".