1212641401 has 2 divisors, whose sum is σ = 1212641402. Its totient is φ = 1212641400.

The previous prime is 1212641377. The next prime is 1212641411. The reversal of 1212641401 is 1041462121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1107558400 + 105083001 = 33280^2 + 10251^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212641401 - 2⁵ = 1212641369 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212641411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606320700 + 606320701.

It is an arithmetic number, because the mean of its divisors is an integer number (606320701).

Almost surely, 2^1212641401 is an apocalyptic number.

It is an amenable number.

1212641401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212641401 is an equidigital number, since it uses as much as digits as its factorization.

1212641401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1212641401 is about 34823.0010337995. The cubic root of 1212641401 is about 1066.3770679417.

The spelling of 1212641401 in words is "one billion, two hundred twelve million, six hundred forty-one thousand, four hundred one".