2210106907781 has 16 divisors (see below), whose sum is σ = 2463606072000. Its totient is φ = 1970358421248.

The previous prime is 2210106907759. The next prime is 2210106907787. The reversal of 2210106907781 is 1877096010122.

It is a de Polignac number, because none of the positive numbers 2^k-2210106907781 is a prime.

It is a super-2 number, since 2×2210106907781² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210106907787) 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, 1985126 + ... + 2891528.

It is an arithmetic number, because the mean of its divisors is an integer number (153975379500).

Almost surely, 2^{2210106907781} is an apocalyptic number.

It is an amenable number.

2210106907781 is a deficient number, since it is larger than the sum of its proper divisors (253499164219).

2210106907781 is a wasteful number, since it uses less digits than its factorization.

2210106907781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913988.

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 2210106907781 in words is "two trillion, two hundred ten billion, one hundred six million, nine hundred seven thousand, seven hundred eighty-one".