201122211131122 has 4 divisors (see below), whose sum is σ = 301683316696686. Its totient is φ = 100561105565560.

The previous prime is 201122211130909. The next prime is 201122211131137. The reversal of 201122211131122 is 221131112221102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 161049272489361 + 40072938641761 = 12690519^2 + 6330319^2 .

It is a super-2 number, since 2×201122211131122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201122211131093 and 201122211131102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50280552782779 + ... + 50280552782782.

Almost surely, 2^{201122211131122} is an apocalyptic number.

201122211131122 is a deficient number, since it is larger than the sum of its proper divisors (100561105565564).

201122211131122 is a wasteful number, since it uses less digits than its factorization.

201122211131122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100561105565563.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 201122211131122 its reverse (221131112221102), we get a palindrome (422253323352224).

The spelling of 201122211131122 in words is "two hundred one trillion, one hundred twenty-two billion, two hundred eleven million, one hundred thirty-one thousand, one hundred twenty-two".