212001450015 has 32 divisors (see below), whose sum is σ = 343732686336. Its totient is φ = 111565249920.

The previous prime is 212001449953. The next prime is 212001450019. The reversal of 212001450015 is 510054100212.

It is not a de Polignac number, because 212001450015 - 2¹¹ = 212001447967 is a prime.

It is a super-2 number, since 2×212001450015² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212001449973 and 212001450000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001450019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 180280 + ... + 675650.

It is an arithmetic number, because the mean of its divisors is an integer number (10741646448).

Almost surely, 2^212001450015 is an apocalyptic number.

212001450015 is a deficient number, since it is larger than the sum of its proper divisors (131731236321).

212001450015 is a wasteful number, since it uses less digits than its factorization.

212001450015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495759.

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 212001450015 its reverse (510054100212), we get a palindrome (722055550227).

The spelling of 212001450015 in words is "two hundred twelve billion, one million, four hundred fifty thousand, fifteen".