20200121002010 has 8 divisors (see below), whose sum is σ = 36360217803636. Its totient is φ = 8080048400800.

The previous prime is 20200121002001. The next prime is 20200121002021. The reversal of 20200121002010 is 1020012100202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17857326478849 + 2342794523161 = 4225793^2 + 1530619^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20200121001982 and 20200121002000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010006050091 + ... + 1010006050110.

Almost surely, 2^{20200121002010} is an apocalyptic number.

20200121002010 is a deficient number, since it is larger than the sum of its proper divisors (16160096801626).

20200121002010 is a wasteful number, since it uses less digits than its factorization.

20200121002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020012100208.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20200121002010 its reverse (1020012100202), we get a palindrome (21220133102212).

The spelling of 20200121002010 in words is "twenty trillion, two hundred billion, one hundred twenty-one million, two thousand, ten".