2121001201010 has 64 divisors (see below), whose sum is σ = 4181178403584. Its totient is φ = 771455539200.

The previous prime is 2121001200943. The next prime is 2121001201013. The reversal of 2121001201010 is 101021001212.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2121001200982 and 2121001201000.

It is not an unprimeable number, because it can be changed into a prime (2121001201013) 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, 759296 + ... + 2195115.

It is an arithmetic number, because the mean of its divisors is an integer number (65330912556).

Almost surely, 2^{2121001201010} is an apocalyptic number.

2121001201010 is a deficient number, since it is larger than the sum of its proper divisors (2060177202574).

2121001201010 is a wasteful number, since it uses less digits than its factorization.

2121001201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954579.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2121001201010 its reverse (101021001212), we get a palindrome (2222022202222).

The spelling of 2121001201010 in words is "two trillion, one hundred twenty-one billion, one million, two hundred one thousand, ten".