1011211201 has 16 divisors (see below), whose sum is σ = 1357711488. Its totient is φ = 727344000.

The previous prime is 1011211193. The next prime is 1011211231. The reversal of 1011211201 is 1021121101.

It is a cyclic number.

It is not a de Polignac number, because 1011211201 - 2³ = 1011211193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011211231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504100 + ... + 506101.

It is an arithmetic number, because the mean of its divisors is an integer number (84856968).

Almost surely, 2^1011211201 is an apocalyptic number.

1011211201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1011211201 is a deficient number, since it is larger than the sum of its proper divisors (346500287).

1011211201 is a wasteful number, since it uses less digits than its factorization.

1011211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010232.

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

The square root of 1011211201 is about 31799.5471823106. The cubic root of 1011211201 is about 1003.7231876698.

Adding to 1011211201 its reverse (1021121101), we get a palindrome (2032332302).

It can be divided in two parts, 1011 and 211201, that added together give a palindrome (212212).

The spelling of 1011211201 in words is "one billion, eleven million, two hundred eleven thousand, two hundred one".