20112101221010 has 16 divisors (see below), whose sum is σ = 36201896032536. Its totient is φ = 8044815191808.

The previous prime is 20112101220977. The next prime is 20112101221099. The reversal of 20112101221010 is 1012210121102.

It can be written as a sum of positive squares in 4 ways, for example, as 17158972390921 + 2953128830089 = 4142339^2 + 1718467^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364424 + ... + 6352716.

Almost surely, 2^{20112101221010} is an apocalyptic number.

20112101221010 is a deficient number, since it is larger than the sum of its proper divisors (16089794811526).

20112101221010 is a wasteful number, since it uses less digits than its factorization.

20112101221010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6324157.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20112101221010 its reverse (1012210121102), we get a palindrome (21124311342112).

The spelling of 20112101221010 in words is "twenty trillion, one hundred twelve billion, one hundred one million, two hundred twenty-one thousand, ten".