201120200121 has 128 divisors (see below), whose sum is σ = 302792048640. Its totient is φ = 118313395200.

The previous prime is 201120200101. The next prime is 201120200137. The reversal of 201120200121 is 121002021102.

It is not a de Polignac number, because 201120200121 - 2⁵ = 201120200089 is a prime.

It is a super-2 number, since 2×201120200121² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201120200097 and 201120200106.

It is not an unprimeable number, because it can be changed into a prime (201120200101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 878254035 + ... + 878254263.

It is an arithmetic number, because the mean of its divisors is an integer number (2365562880).

Almost surely, 2^201120200121 is an apocalyptic number.

It is an amenable number.

201120200121 is a deficient number, since it is larger than the sum of its proper divisors (101671848519).

201120200121 is a wasteful number, since it uses less digits than its factorization.

201120200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201120200121 its reverse (121002021102), we get a palindrome (322122221223).

The spelling of 201120200121 in words is "two hundred one billion, one hundred twenty million, two hundred thousand, one hundred twenty-one".