20011121223410 has 64 divisors (see below), whose sum is σ = 37127948421600. Its totient is φ = 7761842829312.

The previous prime is 20011121223409. The next prime is 20011121223413. The reversal of 20011121223410 is 1432212111002.

It can be written as a sum of positive squares in 16 ways, for example, as 147350802769 + 19863770420641 = 383863^2 + 4456879^2 .

It is not an unprimeable number, because it can be changed into a prime (20011121223413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111089696 + ... + 111269684.

Almost surely, 2^{20011121223410} is an apocalyptic number.

20011121223410 is a deficient number, since it is larger than the sum of its proper divisors (17116827198190).

20011121223410 is a wasteful number, since it uses less digits than its factorization.

20011121223410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182495.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20011121223410 its reverse (1432212111002), we get a palindrome (21443333334412).

The spelling of 20011121223410 in words is "twenty trillion, eleven billion, one hundred twenty-one million, two hundred twenty-three thousand, four hundred ten".