212370101 has 6 divisors (see below), whose sum is σ = 215591670. Its totient is φ = 209195976.

The previous prime is 212370079. The next prime is 212370107. The reversal of 212370101 is 101073212.

It can be written as a sum of positive squares in only one way, i.e., 142229476 + 70140625 = 11926^2 + 8375^2 .

It is not a de Polignac number, because 212370101 - 2¹⁴ = 212353717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212370101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212370107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19166 + ... + 28143.

It is an arithmetic number, because the mean of its divisors is an integer number (35931945).

Almost surely, 2^212370101 is an apocalyptic number.

It is an amenable number.

212370101 is a deficient number, since it is larger than the sum of its proper divisors (3221569).

212370101 is an frugal number, since it uses more digits than its factorization.

212370101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47443 (or 47376 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 212370101 is about 14572.9235570629. The cubic root of 212370101 is about 596.6199772392.

The spelling of 212370101 in words is "two hundred twelve million, three hundred seventy thousand, one hundred one".