2221122002001 has 12 divisors (see below), whose sum is σ = 3445005554352. Its totient is φ = 1269212572488.

The previous prime is 2221122001997. The next prime is 2221122002041. The reversal of 2221122002001 is 1002002211222.

It is not a de Polignac number, because 2221122002001 - 2² = 2221122001997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221122002041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7554836595 + ... + 7554836888.

It is an arithmetic number, because the mean of its divisors is an integer number (287083796196).

Almost surely, 2^{2221122002001} is an apocalyptic number.

2221122002001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2221122002001 is a deficient number, since it is larger than the sum of its proper divisors (1223883552351).

2221122002001 is a wasteful number, since it uses less digits than its factorization.

2221122002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15109673500 (or 15109673493 counting only the distinct ones).

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

Adding to 2221122002001 its reverse (1002002211222), we get a palindrome (3223124213223).

The spelling of 2221122002001 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-two million, two thousand, one".