2211420633786 has 240 divisors, whose sum is σ = 6159377657664. Its totient is φ = 580651089408.

The previous prime is 2211420633757. The next prime is 2211420633797. The reversal of 2211420633786 is 6873360241122.

2211420633786 is a `hidden beast` number, since 2 + 2 + 1 + 1 + 4 + 2 + 0 + 633 + 7 + 8 + 6 = 666.

2211420633786 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 43478226 + ... + 43529058.

Almost surely, 2^{2211420633786} is an apocalyptic number.

2211420633786 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2211420633786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3079688828832).

2211420633786 is an abundant number, since it is smaller than the sum of its proper divisors (3947957023878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211420633786 is a wasteful number, since it uses less digits than its factorization.

2211420633786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51107 (or 51085 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 2211420633786 in words is "two trillion, two hundred eleven billion, four hundred twenty million, six hundred thirty-three thousand, seven hundred eighty-six".