2010221222121 has 48 divisors (see below), whose sum is σ = 3396589282944. Its totient is φ = 1121668273152.

The previous prime is 2010221222071. The next prime is 2010221222171. The reversal of 2010221222121 is 1212221220102.

It is a happy number.

2010221222121 is a `hidden beast` number, since 201 + 0 + 221 + 2 + 221 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (2010221222071) and next prime (2010221222171).

It is not a de Polignac number, because 2010221222121 - 2¹⁰ = 2010221221097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2010221222094 and 2010221222103.

It is not an unprimeable number, because it can be changed into a prime (2010221222171) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9695875 + ... + 9901031.

It is an arithmetic number, because the mean of its divisors is an integer number (70762276728).

Almost surely, 2^{2010221222121} is an apocalyptic number.

2010221222121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2010221222121 is a deficient number, since it is larger than the sum of its proper divisors (1386368060823).

2010221222121 is a wasteful number, since it uses less digits than its factorization.

2010221222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208830 (or 208827 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2010221222121 its reverse (1212221220102), we get a palindrome (3222442442223).

The spelling of 2010221222121 in words is "two trillion, ten billion, two hundred twenty-one million, two hundred twenty-two thousand, one hundred twenty-one".