20211121221010 has 32 divisors (see below), whose sum is σ = 36452110464000. Its totient is φ = 8068442296320.

The previous prime is 20211121221007. The next prime is 20211121221017. The reversal of 20211121221010 is 1012212111202.

It is not an unprimeable number, because it can be changed into a prime (20211121221017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10418641 + ... + 12205339.

It is an arithmetic number, because the mean of its divisors is an integer number (1139128452000).

Almost surely, 2^{20211121221010} is an apocalyptic number.

20211121221010 is a deficient number, since it is larger than the sum of its proper divisors (16240989242990).

20211121221010 is a wasteful number, since it uses less digits than its factorization.

20211121221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788946.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20211121221010 its reverse (1012212111202), we get a palindrome (21223333332212).

The spelling of 20211121221010 in words is "twenty trillion, two hundred eleven billion, one hundred twenty-one million, two hundred twenty-one thousand, ten".