20010102020122 has 4 divisors (see below), whose sum is σ = 30015153030186. Its totient is φ = 10005051010060.

The previous prime is 20010102020023. The next prime is 20010102020159. The reversal of 20010102020122 is 22102020101002.

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., 15430763096401 + 4579338923721 = 3928201^2 + 2139939^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5002525505029 + ... + 5002525505032.

Almost surely, 2^{20010102020122} is an apocalyptic number.

20010102020122 is a deficient number, since it is larger than the sum of its proper divisors (10005051010064).

20010102020122 is a wasteful number, since it uses less digits than its factorization.

20010102020122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10005051010063.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20010102020122 its reverse (22102020101002), we get a palindrome (42112122121124).

The spelling of 20010102020122 in words is "twenty trillion, ten billion, one hundred two million, twenty thousand, one hundred twenty-two".