2211420633787 has 16 divisors (see below), whose sum is σ = 2420441395200. Its totient is φ = 2012649491520.

The previous prime is 2211420633757. The next prime is 2211420633797. The reversal of 2211420633787 is 7873360241122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211420633787 is a prime.

It is a super-2 number, since 2×2211420633787² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211420633757) 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, 13621987 + ... + 13783372.

It is an arithmetic number, because the mean of its divisors is an integer number (151277587200).

Almost surely, 2^{2211420633787} is an apocalyptic number.

2211420633787 is a deficient number, since it is larger than the sum of its proper divisors (209020761413).

2211420633787 is a wasteful number, since it uses less digits than its factorization.

2211420633787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27405546.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 2211420633787 in words is "two trillion, two hundred eleven billion, four hundred twenty million, six hundred thirty-three thousand, seven hundred eighty-seven".