1210213011 has 64 divisors (see below), whose sum is σ = 1990656000. Its totient is φ = 639065856.

The previous prime is 1210213009. The next prime is 1210213063. The reversal of 1210213011 is 1103120121.

It is not a de Polignac number, because 1210213011 - 2¹ = 1210213009 is a prime.

It is a super-2 number, since 2×1210213011² = 2929231063987372242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1210213211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2020090 + ... + 2020688.

It is an arithmetic number, because the mean of its divisors is an integer number (31104000).

Almost surely, 2^1210213011 is an apocalyptic number.

1210213011 is a deficient number, since it is larger than the sum of its proper divisors (780442989).

1210213011 is a wasteful number, since it uses less digits than its factorization.

1210213011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1210213011 is about 34788.1159449603. The cubic root of 1210213011 is about 1065.6647634001.

Adding to 1210213011 its reverse (1103120121), we get a palindrome (2313333132).

The spelling of 1210213011 in words is "one billion, two hundred ten million, two hundred thirteen thousand, eleven".