201121100022 has 32 divisors (see below), whose sum is σ = 413142522624. Its totient is φ = 65223900000.

The previous prime is 201121100009. The next prime is 201121100039. The reversal of 201121100022 is 220001121102.

It is a junction number, because it is equal to n+sod(n) for n = 201121099980 and 201121100007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4807897 + ... + 4849547.

It is an arithmetic number, because the mean of its divisors is an integer number (12910703832).

Almost surely, 2^201121100022 is an apocalyptic number.

201121100022 is an abundant number, since it is smaller than the sum of its proper divisors (212021422602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201121100022 is a wasteful number, since it uses less digits than its factorization.

201121100022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63444.

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

Adding to 201121100022 its reverse (220001121102), we get a palindrome (421122221124).

The spelling of 201121100022 in words is "two hundred one billion, one hundred twenty-one million, one hundred thousand, twenty-two".