22154030826061 has 2 divisors, whose sum is σ = 22154030826062. Its totient is φ = 22154030826060.

The previous prime is 22154030825989. The next prime is 22154030826127. The reversal of 22154030826061 is 16062803045122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12489113592036 + 9664917234025 = 3533994^2 + 3108845^2 .

It is a cyclic number.

It is not a de Polignac number, because 22154030826061 - 2¹⁹ = 22154030301773 is a prime.

It is a super-2 number, since 2×22154030826061² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22154630826061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11077015413030 + 11077015413031.

It is an arithmetic number, because the mean of its divisors is an integer number (11077015413031).

Almost surely, 2^{22154030826061} is an apocalyptic number.

It is an amenable number.

22154030826061 is a deficient number, since it is larger than the sum of its proper divisors (1).

22154030826061 is an equidigital number, since it uses as much as digits as its factorization.

22154030826061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 22154030826061 in words is "twenty-two trillion, one hundred fifty-four billion, thirty million, eight hundred twenty-six thousand, sixty-one".