1211002010 has 16 divisors (see below), whose sum is σ = 2254969800. Its totient is φ = 467697216.

The previous prime is 1211002007. The next prime is 1211002043. The reversal of 1211002010 is 102001121.

It can be written as a sum of positive squares in 4 ways, for example, as 836308561 + 374693449 = 28919^2 + 19357^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2087645 + ... + 2088224.

Almost surely, 2^1211002010 is an apocalyptic number.

1211002010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211002010 is a deficient number, since it is larger than the sum of its proper divisors (1043967790).

1211002010 is a wasteful number, since it uses less digits than its factorization.

1211002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4175905.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1211002010 is about 34799.4541623859. The cubic root of 1211002010 is about 1065.8962999890.

Adding to 1211002010 its reverse (102001121), we get a palindrome (1313003131).

The spelling of 1211002010 in words is "one billion, two hundred eleven million, two thousand, ten".