2122021001121 has 16 divisors (see below), whose sum is σ = 3235781291904. Its totient is φ = 1211748873984.

The previous prime is 2122021001119. The next prime is 2122021001161. The reversal of 2122021001121 is 1211001202212.

It is not a de Polignac number, because 2122021001121 - 2¹ = 2122021001119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2122021001121.

It is not an unprimeable number, because it can be changed into a prime (2122021001161) 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, 34741896 + ... + 34802921.

It is an arithmetic number, because the mean of its divisors is an integer number (202236330744).

Almost surely, 2^{2122021001121} is an apocalyptic number.

2122021001121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2122021001121 is a deficient number, since it is larger than the sum of its proper divisors (1113760290783).

2122021001121 is a wasteful number, since it uses less digits than its factorization.

2122021001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69546280.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2122021001121 its reverse (1211001202212), we get a palindrome (3333022203333).

The spelling of 2122021001121 in words is "two trillion, one hundred twenty-two billion, twenty-one million, one thousand, one hundred twenty-one".