2211771036450 has 48 divisors (see below), whose sum is σ = 5536455688800. Its totient is φ = 584293403520.

The previous prime is 2211771036443. The next prime is 2211771036463. The reversal of 2211771036450 is 546301771122.

2211771036450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2211771036450² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2211771036399 and 2211771036408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68886475 + ... + 68918574.

It is an arithmetic number, because the mean of its divisors is an integer number (115342826850).

Almost surely, 2^{2211771036450} is an apocalyptic number.

2211771036450 is an abundant number, since it is smaller than the sum of its proper divisors (3324684652350).

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

2211771036450 is a wasteful number, since it uses less digits than its factorization.

2211771036450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137805171 (or 137805166 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 2211771036450 in words is "two trillion, two hundred eleven billion, seven hundred seventy-one million, thirty-six thousand, four hundred fifty".