1211400701 has 16 divisors (see below), whose sum is σ = 1440612864. Its totient is φ = 997062144.

The previous prime is 1211400677. The next prime is 1211400781. The reversal of 1211400701 is 1070041121.

It is a cyclic number.

It is not a de Polignac number, because 1211400701 - 2¹⁰ = 1211399677 is a prime.

It is a super-3 number, since 3×1211400701³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1211400701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211400781) 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, 17300 + ... + 52173.

It is an arithmetic number, because the mean of its divisors is an integer number (90038304).

Almost surely, 2^1211400701 is an apocalyptic number.

It is an amenable number.

1211400701 is a deficient number, since it is larger than the sum of its proper divisors (229212163).

1211400701 is an equidigital number, since it uses as much as digits as its factorization.

1211400701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69580.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 1211400701 is about 34805.1820997966. The cubic root of 1211400701 is about 1066.0132600575.

Adding to 1211400701 its reverse (1070041121), we get a palindrome (2281441822).

The spelling of 1211400701 in words is "one billion, two hundred eleven million, four hundred thousand, seven hundred one".