20010201023122 has 4 divisors (see below), whose sum is σ = 30015301534686. Its totient is φ = 10005100511560.

The previous prime is 20010201023107. The next prime is 20010201023143. The reversal of 20010201023122 is 22132010201002.

It is a happy number.

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., 16423574865201 + 3586626157921 = 4052601^2 + 1893839^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20010201023096 and 20010201023105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002550255779 + ... + 5002550255782.

Almost surely, 2^{20010201023122} is an apocalyptic number.

20010201023122 is a deficient number, since it is larger than the sum of its proper divisors (10005100511564).

20010201023122 is a wasteful number, since it uses less digits than its factorization.

20010201023122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005100511563.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20010201023122 its reverse (22132010201002), we get a palindrome (42142211224124).

The spelling of 20010201023122 in words is "twenty trillion, ten billion, two hundred one million, twenty-three thousand, one hundred twenty-two".