121782244236411 has 16 divisors (see below), whose sum is σ = 177413296314240. Its totient is φ = 73692634701120.

The previous prime is 121782244236403. The next prime is 121782244236413. The reversal of 121782244236411 is 114632442287121.

It is a happy number.

It is not a de Polignac number, because 121782244236411 - 2³ = 121782244236403 is a prime.

It is a super-2 number, since 2×121782244236411² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121782244236413) 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, 2869629666 + ... + 2869672103.

It is an arithmetic number, because the mean of its divisors is an integer number (11088331019640).

Almost surely, 2^{121782244236411} is an apocalyptic number.

121782244236411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121782244236411 is a deficient number, since it is larger than the sum of its proper divisors (55631052077829).

121782244236411 is a wasteful number, since it uses less digits than its factorization.

121782244236411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5739302426.

The product of its digits is 1032192, while the sum is 48.

The spelling of 121782244236411 in words is "one hundred twenty-one trillion, seven hundred eighty-two billion, two hundred forty-four million, two hundred thirty-six thousand, four hundred eleven".