2201021010128 has 10 divisors (see below), whose sum is σ = 4264478207154. Its totient is φ = 1100510505056.

The previous prime is 2201021010127. The next prime is 2201021010131. The reversal of 2201021010128 is 8210101201022.

It can be written as a sum of positive squares in only one way, i.e., 1662634882624 + 538386127504 = 1289432^2 + 733748^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201021010127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68781906551 + ... + 68781906582.

Almost surely, 2^{2201021010128} is an apocalyptic number.

It is an amenable number.

2201021010128 is a deficient number, since it is larger than the sum of its proper divisors (2063457197026).

2201021010128 is a wasteful number, since it uses less digits than its factorization.

2201021010128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137563813141 (or 137563813135 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The spelling of 2201021010128 in words is "two trillion, two hundred one billion, twenty-one million, ten thousand, one hundred twenty-eight".