1021414121 has 16 divisors (see below), whose sum is σ = 1257879168. Its totient is φ = 807667200.

The previous prime is 1021414109. The next prime is 1021414127. The reversal of 1021414121 is 1214141201.

It is a cyclic number.

It is not a de Polignac number, because 1021414121 - 2¹⁸ = 1021151977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021414121.

It is not an unprimeable number, because it can be changed into a prime (1021414127) 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, 274886 + ... + 278576.

It is an arithmetic number, because the mean of its divisors is an integer number (78617448).

Almost surely, 2^1021414121 is an apocalyptic number.

It is an amenable number.

1021414121 is a deficient number, since it is larger than the sum of its proper divisors (236465047).

1021414121 is a wasteful number, since it uses less digits than its factorization.

1021414121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6752.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 1021414121 is about 31959.5701003627. The cubic root of 1021414121 is about 1007.0876863515.

Adding to 1021414121 its reverse (1214141201), we get a palindrome (2235555322).

The spelling of 1021414121 in words is "one billion, twenty-one million, four hundred fourteen thousand, one hundred twenty-one".