10022012011981 has 16 divisors (see below), whose sum is σ = 10331719041600. Its totient is φ = 9714365797248.

The previous prime is 10022012011951. The next prime is 10022012012021. The reversal of 10022012011981 is 18911021022001.

It is a cyclic number.

It is not a de Polignac number, because 10022012011981 - 2⁴³ = 1225918989773 is a prime.

It is a super-2 number, since 2×10022012011981² (a number of 27 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 (10022012011901) 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, 44483625 + ... + 44708353.

It is an arithmetic number, because the mean of its divisors is an integer number (645732440100).

Almost surely, 2^{10022012011981} is an apocalyptic number.

It is an amenable number.

10022012011981 is a deficient number, since it is larger than the sum of its proper divisors (309707029619).

10022012011981 is a wasteful number, since it uses less digits than its factorization.

10022012011981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229308.

The product of its (nonzero) digits is 576, while the sum is 28.

Adding to 10022012011981 its reverse (18911021022001), we get a palindrome (28933033033982).

The spelling of 10022012011981 in words is "ten trillion, twenty-two billion, twelve million, eleven thousand, nine hundred eighty-one".