20444121010 has 32 divisors (see below), whose sum is σ = 38082849840. Its totient is φ = 7892656128.

The previous prime is 20444120969. The next prime is 20444121029. The reversal of 20444121010 is 1012144402.

It can be written as a sum of positive squares in 8 ways, for example, as 8151742369 + 12292378641 = 90287^2 + 110871^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 844434 + ... + 868306.

Almost surely, 2^20444121010 is an apocalyptic number.

20444121010 is a deficient number, since it is larger than the sum of its proper divisors (17638728830).

20444121010 is a wasteful number, since it uses less digits than its factorization.

20444121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26862.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20444121010 its reverse (1012144402), we get a palindrome (21456265412).

The spelling of 20444121010 in words is "twenty billion, four hundred forty-four million, one hundred twenty-one thousand, ten".