76021212222101 has 4 divisors (see below), whose sum is σ = 76021571748012. Its totient is φ = 76020852696192.

The previous prime is 76021212222091. The next prime is 76021212222143. The reversal of 76021212222101 is 10122221212067.

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

It can be written as a sum of positive squares in 2 ways, for example, as 35640601500625 + 40380610721476 = 5969975^2 + 6354574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76021212222101 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 (76021215222101) 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, 179445596 + ... + 179868741.

It is an arithmetic number, because the mean of its divisors is an integer number (19005392937003).

Almost surely, 2^{76021212222101} is an apocalyptic number.

It is an amenable number.

76021212222101 is a deficient number, since it is larger than the sum of its proper divisors (359525911).

76021212222101 is a wasteful number, since it uses less digits than its factorization.

76021212222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359525910.

The product of its (nonzero) digits is 2688, while the sum is 29.

Adding to 76021212222101 its reverse (10122221212067), we get a palindrome (86143433434168).

The spelling of 76021212222101 in words is "seventy-six trillion, twenty-one billion, two hundred twelve million, two hundred twenty-two thousand, one hundred one".