201001312322122 has 32 divisors (see below), whose sum is σ = 325268132389200. Its totient is φ = 92606050579968.

The previous prime is 201001312322117. The next prime is 201001312322137. The reversal of 201001312322122 is 221223213100102.

It can be written as a sum of positive squares in 8 ways, for example, as 175375433357721 + 25625878964401 = 13242939^2 + 5062201^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201001312322093 and 201001312322102.

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, 34486204 + ... + 39891112.

Almost surely, 2^{201001312322122} is an apocalyptic number.

201001312322122 is a deficient number, since it is larger than the sum of its proper divisors (124266820067078).

201001312322122 is a wasteful number, since it uses less digits than its factorization.

201001312322122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5407450.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 201001312322122 its reverse (221223213100102), we get a palindrome (422224525422224).

The spelling of 201001312322122 in words is "two hundred one trillion, one billion, three hundred twelve million, three hundred twenty-two thousand, one hundred twenty-two".