1011213210 has 128 divisors (see below), whose sum is σ = 2954133504. Its totient is φ = 216253440.

The previous prime is 1011213197. The next prime is 1011213221. The reversal of 1011213210 is 123121101.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 681129 + ... + 682611.

It is an arithmetic number, because the mean of its divisors is an integer number (23079168).

Almost surely, 2^1011213210 is an apocalyptic number.

1011213210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1011213210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477066752).

1011213210 is an abundant number, since it is smaller than the sum of its proper divisors (1942920294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011213210 is a wasteful number, since it uses less digits than its factorization.

1011213210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708.

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

The square root of 1011213210 is about 31799.5787707951. The cubic root of 1011213210 is about 1003.7238523772.

Adding to 1011213210 its reverse (123121101), we get a palindrome (1134334311).

The spelling of 1011213210 in words is "one billion, eleven million, two hundred thirteen thousand, two hundred ten".