1214202121 has 8 divisors (see below), whose sum is σ = 1336737600. Its totient is φ = 1093692240.

The previous prime is 1214202109. The next prime is 1214202127. The reversal of 1214202121 is 1212024121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1214202121 - 2¹⁹ = 1213677833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1214202095 and 1214202104.

It is not an unprimeable number, because it can be changed into a prime (1214202127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505141 + ... + 507538.

It is an arithmetic number, because the mean of its divisors is an integer number (167092200).

Almost surely, 2^1214202121 is an apocalyptic number.

1214202121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1214202121 is a deficient number, since it is larger than the sum of its proper divisors (122535479).

1214202121 is a wasteful number, since it uses less digits than its factorization.

1214202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012799.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1214202121 is about 34845.4031545052. The cubic root of 1214202121 is about 1066.8343623822.

Adding to 1214202121 its reverse (1212024121), we get a palindrome (2426226242).

The spelling of 1214202121 in words is "one billion, two hundred fourteen million, two hundred two thousand, one hundred twenty-one".