2121022202011 has 8 divisors (see below), whose sum is σ = 2277419035104. Its totient is φ = 1968139904640.

The previous prime is 2121022201927. The next prime is 2121022202081. The reversal of 2121022202011 is 1102022201212.

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 2121022202011 - 2²¹ = 2121020104859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121022202081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 878632680 + ... + 878635093.

It is an arithmetic number, because the mean of its divisors is an integer number (284677379388).

Almost surely, 2^{2121022202011} is an apocalyptic number.

2121022202011 is a deficient number, since it is larger than the sum of its proper divisors (156396833093).

2121022202011 is a wasteful number, since it uses less digits than its factorization.

2121022202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757267861.

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

Adding to 2121022202011 its reverse (1102022201212), we get a palindrome (3223044403223).

The spelling of 2121022202011 in words is "two trillion, one hundred twenty-one billion, twenty-two million, two hundred two thousand, eleven".