2012121202122 has 32 divisors (see below), whose sum is σ = 4471534748160. Its totient is φ = 670683922560.

The previous prime is 2012121202103. The next prime is 2012121202127. The reversal of 2012121202122 is 2212021212102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2012121202095 and 2012121202104.

It is not an unprimeable number, because it can be changed into a prime (2012121202127) 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, 973722 + ... + 2229882.

It is an arithmetic number, because the mean of its divisors is an integer number (139735460880).

Almost surely, 2^{2012121202122} is an apocalyptic number.

2012121202122 is an abundant number, since it is smaller than the sum of its proper divisors (2459413546038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2012121202122 is a wasteful number, since it uses less digits than its factorization.

2012121202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285835 (or 1285829 counting only the distinct ones).

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

Adding to 2012121202122 its reverse (2212021212102), we get a palindrome (4224142414224).

The spelling of 2012121202122 in words is "two trillion, twelve billion, one hundred twenty-one million, two hundred two thousand, one hundred twenty-two".