1011211210 has 16 divisors (see below), whose sum is σ = 1821333600. Its totient is φ = 404228176.

The previous prime is 1011211193. The next prime is 1011211231. The reversal of 1011211210 is 121121101.

It is a super-2 number, since 2×1011211210² = 2045096222459328200, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15040 + ... + 47419.

It is an arithmetic number, because the mean of its divisors is an integer number (113833350).

Almost surely, 2^1011211210 is an apocalyptic number.

1011211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1011211210 is a deficient number, since it is larger than the sum of its proper divisors (810122390).

1011211210 is a wasteful number, since it uses less digits than its factorization.

1011211210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64085.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1011211210 is about 31799.5473238221. The cubic root of 1011211210 is about 1003.7231906476.

Adding to 1011211210 its reverse (121121101), we get a palindrome (1132332311).

The spelling of 1011211210 in words is "one billion, eleven million, two hundred eleven thousand, two hundred ten".