2122121101010 has 64 divisors (see below), whose sum is σ = 4010928023520. Its totient is φ = 807341875200.

The previous prime is 2122121100977. The next prime is 2122121101013. The reversal of 2122121101010 is 101011212212.

It can be written as a sum of positive squares in 16 ways, for example, as 1710751513849 + 411369587161 = 1307957^2 + 641381^2 .

It is not an unprimeable number, because it can be changed into a prime (2122121101013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5586242 + ... + 5954018.

Almost surely, 2^{2122121101010} is an apocalyptic number.

2122121101010 is a deficient number, since it is larger than the sum of its proper divisors (1888806922510).

2122121101010 is a wasteful number, since it uses less digits than its factorization.

2122121101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368111.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2122121101010 its reverse (101011212212), we get a palindrome (2223132313222).

The spelling of 2122121101010 in words is "two trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred one thousand, ten".