1011211002 has 12 divisors (see below), whose sum is σ = 2190957210. Its totient is φ = 337070328.

The previous prime is 1011210997. The next prime is 1011211013. The reversal of 1011211002 is 2001121101.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 513430281 + 497780721 = 22659^2 + 22311^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28089177 + ... + 28089212.

Almost surely, 2^1011211002 is an apocalyptic number.

1011211002 is an abundant number, since it is smaller than the sum of its proper divisors (1179746208).

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

1011211002 is a wasteful number, since it uses less digits than its factorization.

1011211002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56178397 (or 56178394 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1011211002 is about 31799.5440533351. The cubic root of 1011211002 is about 1003.7231218277.

Adding to 1011211002 its reverse (2001121101), we get a palindrome (3012332103).

The spelling of 1011211002 in words is "one billion, eleven million, two hundred eleven thousand, two".