1212127070 has 64 divisors (see below), whose sum is σ = 2730502656. Its totient is φ = 376375680.

The previous prime is 1212127061. The next prime is 1212127087. The reversal of 1212127070 is 707212121.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210449 + ... + 216131.

It is an arithmetic number, because the mean of its divisors is an integer number (42664104).

Almost surely, 2^1212127070 is an apocalyptic number.

1212127070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212127070 is an abundant number, since it is smaller than the sum of its proper divisors (1518375586).

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

1212127070 is a wasteful number, since it uses less digits than its factorization.

1212127070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5985.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 1212127070 is about 34815.6153184171. The cubic root of 1212127070 is about 1066.2262818576.

Adding to 1212127070 its reverse (707212121), we get a palindrome (1919339191).

The spelling of 1212127070 in words is "one billion, two hundred twelve million, one hundred twenty-seven thousand, seventy".