2400021122 has 4 divisors (see below), whose sum is σ = 3600031686. Its totient is φ = 1200010560.

The previous prime is 2400021103. The next prime is 2400021131. The reversal of 2400021122 is 2211200042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1589537161 + 810483961 = 39869^2 + 28469^2 .

It is a super-2 number, since 2×2400021122² = 11520202772092277768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2400021097 and 2400021106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600005279 + ... + 600005282.

Almost surely, 2^2400021122 is an apocalyptic number.

2400021122 is a deficient number, since it is larger than the sum of its proper divisors (1200010564).

2400021122 is a wasteful number, since it uses less digits than its factorization.

2400021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200010563.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2400021122 is about 48990.0104306990. The cubic root of 2400021122 is about 1338.8698278647.

Adding to 2400021122 its reverse (2211200042), we get a palindrome (4611221164).

The spelling of 2400021122 in words is "two billion, four hundred million, twenty-one thousand, one hundred twenty-two".