1201111010 has 32 divisors (see below), whose sum is σ = 2393762112. Its totient is φ = 430246080.

The previous prime is 1201111007. The next prime is 1201111019. The reversal of 1201111010 is 101111021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1201111019) 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, 74117 + ... + 88856.

It is an arithmetic number, because the mean of its divisors is an integer number (74805066).

Almost surely, 2^1201111010 is an apocalyptic number.

1201111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201111010 is a deficient number, since it is larger than the sum of its proper divisors (1192651102).

1201111010 is a wasteful number, since it uses less digits than its factorization.

1201111010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163058.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 1201111010 is about 34657.0484894487. The cubic root of 1201111010 is about 1062.9864192179.

Adding to 1201111010 its reverse (101111021), we get a palindrome (1302222031).

It can be divided in two parts, 120111 and 1010, that added together give a palindrome (121121).

The spelling of 1201111010 in words is "one billion, two hundred one million, one hundred eleven thousand, ten".