1211140150 has 96 divisors (see below), whose sum is σ = 2549086848. Its totient is φ = 424300800.

The previous prime is 1211140111. The next prime is 1211140159. The reversal of 1211140150 is 510411121.

1211140150 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211140159) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1962642 + ... + 1963258.

It is an arithmetic number, because the mean of its divisors is an integer number (26552988).

Almost surely, 2^1211140150 is an apocalyptic number.

1211140150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211140150 is an abundant number, since it is smaller than the sum of its proper divisors (1337946698).

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

1211140150 is a wasteful number, since it uses less digits than its factorization.

1211140150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 761 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1211140150 is about 34801.4389070337. The cubic root of 1211140150 is about 1065.9368276719.

Adding to 1211140150 its reverse (510411121), we get a palindrome (1721551271).

The spelling of 1211140150 in words is "one billion, two hundred eleven million, one hundred forty thousand, one hundred fifty".