20021112001010 has 16 divisors (see below), whose sum is σ = 36038697859800. Its totient is φ = 8008290076416.

The previous prime is 20021112000961. The next prime is 20021112001069. The reversal of 20021112001010 is 1010021112002.

It can be written as a sum of positive squares in 4 ways, for example, as 9764868764641 + 10256243236369 = 3124879^2 + 3202537^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20021112000982 and 20021112001000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18796295 + ... + 19832874.

Almost surely, 2^{20021112001010} is an apocalyptic number.

20021112001010 is a deficient number, since it is larger than the sum of its proper divisors (16017585858790).

20021112001010 is a wasteful number, since it uses less digits than its factorization.

20021112001010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38681005.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20021112001010 its reverse (1010021112002), we get a palindrome (21031133113012).

The spelling of 20021112001010 in words is "twenty trillion, twenty-one billion, one hundred twelve million, one thousand, ten".