201121222101122 has 8 divisors (see below), whose sum is σ = 302049289710972. Its totient is φ = 100438125530800.

The previous prime is 201121222101101. The next prime is 201121222101157. The reversal of 201121222101122 is 221101222121102.

It can be written as a sum of positive squares in 2 ways, for example, as 182130112722481 + 18991109378641 = 13495559^2 + 4357879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 201121222101094 and 201121222101103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61242757829 + ... + 61242761112.

Almost surely, 2^{201121222101122} is an apocalyptic number.

201121222101122 is a deficient number, since it is larger than the sum of its proper divisors (100928067609850).

201121222101122 is a wasteful number, since it uses less digits than its factorization.

201121222101122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122485519764.

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

Adding to 201121222101122 its reverse (221101222121102), we get a palindrome (422222444222224).

The spelling of 201121222101122 in words is "two hundred one trillion, one hundred twenty-one billion, two hundred twenty-two million, one hundred one thousand, one hundred twenty-two".