2021222220101 has 8 divisors (see below), whose sum is σ = 2310071183424. Its totient is φ = 1732398989760.

The previous prime is 2021222220091. The next prime is 2021222220107. The reversal of 2021222220101 is 1010222221202.

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 2021222220101 - 2⁶ = 2021222220037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021222220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021222220107) 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, 6264635 + ... + 6579368.

It is an arithmetic number, because the mean of its divisors is an integer number (288758897928).

Almost surely, 2^{2021222220101} is an apocalyptic number.

It is an amenable number.

2021222220101 is a deficient number, since it is larger than the sum of its proper divisors (288848963323).

2021222220101 is a wasteful number, since it uses less digits than its factorization.

2021222220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12866491.

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

Adding to 2021222220101 its reverse (1010222221202), we get a palindrome (3031444441303).

The spelling of 2021222220101 in words is "two trillion, twenty-one billion, two hundred twenty-two million, two hundred twenty thousand, one hundred one".