212001021010 has 64 divisors (see below), whose sum is σ = 395839954944. Its totient is φ = 81692992000.

The previous prime is 212001021007. The next prime is 212001021017. The reversal of 212001021010 is 10120100212.

It is a super-2 number, since 2×212001021010² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (212001021017) 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, 15853347 + ... + 15866713.

It is an arithmetic number, because the mean of its divisors is an integer number (6184999296).

Almost surely, 2^212001021010 is an apocalyptic number.

212001021010 is a deficient number, since it is larger than the sum of its proper divisors (183838933934).

212001021010 is a wasteful number, since it uses less digits than its factorization.

212001021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13899.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 212001021010 its reverse (10120100212), we get a palindrome (222121121222).

The spelling of 212001021010 in words is "two hundred twelve billion, one million, twenty-one thousand, ten".