2221012401 has 16 divisors (see below), whose sum is σ = 3051143424. Its totient is φ = 1436336384.

The previous prime is 2221012397. The next prime is 2221012403. The reversal of 2221012401 is 1042101222.

It is a cyclic number.

It is not a de Polignac number, because 2221012401 - 2² = 2221012397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221012403) 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, 53766 + ... + 85631.

It is an arithmetic number, because the mean of its divisors is an integer number (190696464).

Almost surely, 2^2221012401 is an apocalyptic number.

It is an amenable number.

2221012401 is a deficient number, since it is larger than the sum of its proper divisors (830131023).

2221012401 is a wasteful number, since it uses less digits than its factorization.

2221012401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139560.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2221012401 is about 47127.6182402633. The cubic root of 2221012401 is about 1304.7190229034.

Adding to 2221012401 its reverse (1042101222), we get a palindrome (3263113623).

The spelling of 2221012401 in words is "two billion, two hundred twenty-one million, twelve thousand, four hundred one".