2002101122221 has 8 divisors (see below), whose sum is σ = 2011631753088. Its totient is φ = 1992570888000.

The previous prime is 2002101122129. The next prime is 2002101122251. The reversal of 2002101122221 is 1222211012002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2002101122221 - 2²⁷ = 2001966904493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2002101122195 and 2002101122204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002101122251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17047461 + ... + 17164501.

It is an arithmetic number, because the mean of its divisors is an integer number (251453969136).

Almost surely, 2^{2002101122221} is an apocalyptic number.

It is an amenable number.

2002101122221 is a deficient number, since it is larger than the sum of its proper divisors (9530630867).

2002101122221 is a wasteful number, since it uses less digits than its factorization.

2002101122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198323.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2002101122221 its reverse (1222211012002), we get a palindrome (3224312134223).

The spelling of 2002101122221 in words is "two trillion, two billion, one hundred one million, one hundred twenty-two thousand, two hundred twenty-one".