101212212022 has 4 divisors (see below), whose sum is σ = 151818318036. Its totient is φ = 50606106010.

The previous prime is 101212212001. The next prime is 101212212029. The reversal of 101212212022 is 220212212101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 101212211987 and 101212212005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212212029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25303053004 + ... + 25303053007.

It is an arithmetic number, because the mean of its divisors is an integer number (37954579509).

Almost surely, 2^101212212022 is an apocalyptic number.

101212212022 is a deficient number, since it is larger than the sum of its proper divisors (50606106014).

101212212022 is an equidigital number, since it uses as much as digits as its factorization.

101212212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50606106013.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 101212212022 its reverse (220212212101), we get a palindrome (321424424123).

It can be divided in two parts, 1012122 and 12022, that added together give a square (1024144 = 1012²).

The spelling of 101212212022 in words is "one hundred one billion, two hundred twelve million, two hundred twelve thousand, twenty-two".