2621221046 has 4 divisors (see below), whose sum is σ = 3931831572. Its totient is φ = 1310610522.

The previous prime is 2621221039. The next prime is 2621221063. The reversal of 2621221046 is 6401221262.

2621221046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6401221262 = 2 ⋅3200610631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655305260 + ... + 655305263.

It is an arithmetic number, because the mean of its divisors is an integer number (982957893).

Almost surely, 2^2621221046 is an apocalyptic number.

2621221046 is a deficient number, since it is larger than the sum of its proper divisors (1310610526).

2621221046 is a wasteful number, since it uses less digits than its factorization.

2621221046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310610525.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 2621221046 is about 51197.8617326935. The cubic root of 2621221046 is about 1378.7998117093.

The spelling of 2621221046 in words is "two billion, six hundred twenty-one million, two hundred twenty-one thousand, forty-six".