1210704121 has 16 divisors (see below), whose sum is σ = 1361488320. Its totient is φ = 1066927680.

The previous prime is 1210704109. The next prime is 1210704133. The reversal of 1210704121 is 1214070121.

It is an interprime number because it is at equal distance from previous prime (1210704109) and next prime (1210704133).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210704121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210705121) 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, 107370 + ... + 118108.

It is an arithmetic number, because the mean of its divisors is an integer number (85093020).

Almost surely, 2^1210704121 is an apocalyptic number.

1210704121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1210704121 is a deficient number, since it is larger than the sum of its proper divisors (150784199).

1210704121 is a wasteful number, since it uses less digits than its factorization.

1210704121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11064.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 1210704121 is about 34795.1738176432. The cubic root of 1210704121 is about 1065.8088944579.

Adding to 1210704121 its reverse (1214070121), we get a palindrome (2424774242).

The spelling of 1210704121 in words is "one billion, two hundred ten million, seven hundred four thousand, one hundred twenty-one".