2102222012021 has 8 divisors (see below), whose sum is σ = 2171801356800. Its totient is φ = 2032753025520.

The previous prime is 2102222011979. The next prime is 2102222012113. The reversal of 2102222012021 is 1202102222012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2102222012021 - 2¹⁰ = 2102222010997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102222012621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27550841 + ... + 27627038.

It is an arithmetic number, because the mean of its divisors is an integer number (271475169600).

Almost surely, 2^{2102222012021} is an apocalyptic number.

It is an amenable number.

2102222012021 is a deficient number, since it is larger than the sum of its proper divisors (69579344779).

2102222012021 is a wasteful number, since it uses less digits than its factorization.

2102222012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55179139.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2102222012021 its reverse (1202102222012), we get a palindrome (3304324234033).

The spelling of 2102222012021 in words is "two trillion, one hundred two billion, two hundred twenty-two million, twelve thousand, twenty-one".