211012121221202 has 64 divisors (see below), whose sum is σ = 365297477529600. Its totient is φ = 89544294953280.

The previous prime is 211012121221201. The next prime is 211012121221261. The reversal of 211012121221202 is 202122121210112.

It is a super-3 number, since 3×211012121221202³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (211012121221201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18376038953 + ... + 18376050435.

It is an arithmetic number, because the mean of its divisors is an integer number (5707773086400).

Almost surely, 2^{211012121221202} is an apocalyptic number.

211012121221202 is a deficient number, since it is larger than the sum of its proper divisors (154285356308398).

211012121221202 is a wasteful number, since it uses less digits than its factorization.

211012121221202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18591.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211012121221202 its reverse (202122121210112), we get a palindrome (413134242431314).

The spelling of 211012121221202 in words is "two hundred eleven trillion, twelve billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred two".