1214401099651 has 16 divisors (see below), whose sum is σ = 1328135823360. Its totient is φ = 1105411904640.

The previous prime is 1214401099619. The next prime is 1214401099663. The reversal of 1214401099651 is 1569901044121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1214401099651 - 2⁵ = 1214401099619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1214401099598 and 1214401099607.

It is not an unprimeable number, because it can be changed into a prime (1214401093651) 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, 141550 + ... + 1564876.

It is an arithmetic number, because the mean of its divisors is an integer number (83008488960).

Almost surely, 2^{1214401099651} is an apocalyptic number.

1214401099651 is a deficient number, since it is larger than the sum of its proper divisors (113734723709).

1214401099651 is a wasteful number, since it uses less digits than its factorization.

1214401099651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424994.

The product of its (nonzero) digits is 77760, while the sum is 43.

The spelling of 1214401099651 in words is "one trillion, two hundred fourteen billion, four hundred one million, ninety-nine thousand, six hundred fifty-one".