1011211012 has 24 divisors (see below), whose sum is σ = 2025787904. Its totient is φ = 432654912.

The previous prime is 1011210997. The next prime is 1011211013. The reversal of 1011211012 is 2101121101.

It is a self number, because there is not a number n which added to its sum of digits gives 1011211012.

It is not an unprimeable number, because it can be changed into a prime (1011211013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12753 + ... + 46744.

Almost surely, 2^1011211012 is an apocalyptic number.

It is an amenable number.

1011211012 is an abundant number, since it is smaller than the sum of its proper divisors (1014576892).

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

1011211012 is a wasteful number, since it uses less digits than its factorization.

1011211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60115 (or 60113 counting only the distinct ones).

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

The square root of 1011211012 is about 31799.5442105701. The cubic root of 1011211012 is about 1003.7231251363.

Adding to 1011211012 its reverse (2101121101), we get a palindrome (3112332113).

It can be divided in two parts, 101121101 and 2, that multiplied together give a palindrome (202242202).

The spelling of 1011211012 in words is "one billion, eleven million, two hundred eleven thousand, twelve".