212022021101 has 4 divisors (see below), whose sum is σ = 231296750304. Its totient is φ = 192747291900.

The previous prime is 212022021073. The next prime is 212022021109. The reversal of 212022021101 is 101120220212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212022021101 - 2⁶ = 212022021037 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 (212022021109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9637364585 + ... + 9637364606.

It is an arithmetic number, because the mean of its divisors is an integer number (57824187576).

Almost surely, 2^212022021101 is an apocalyptic number.

It is an amenable number.

212022021101 is a deficient number, since it is larger than the sum of its proper divisors (19274729203).

212022021101 is a wasteful number, since it uses less digits than its factorization.

212022021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19274729202.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212022021101 its reverse (101120220212), we get a palindrome (313142241313).

The spelling of 212022021101 in words is "two hundred twelve billion, twenty-two million, twenty-one thousand, one hundred one".