2111223450 has 48 divisors (see below), whose sum is σ = 5983813440. Its totient is φ = 482565120.

The previous prime is 2111223449. The next prime is 2111223463. The reversal of 2111223450 is 543221112.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 1004295 + ... + 1006394.

It is an arithmetic number, because the mean of its divisors is an integer number (124662780).

Almost surely, 2^2111223450 is an apocalyptic number.

2111223450 is an abundant number, since it is smaller than the sum of its proper divisors (3872589990).

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

2111223450 is a wasteful number, since it uses less digits than its factorization.

2111223450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010711 (or 2010706 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2111223450 is about 45948.0516453092. The cubic root of 2111223450 is about 1282.8564645663.

Adding to 2111223450 its reverse (543221112), we get a palindrome (2654444562).

The spelling of 2111223450 in words is "two billion, one hundred eleven million, two hundred twenty-three thousand, four hundred fifty".