1021285214 has 4 divisors (see below), whose sum is σ = 1531927824. Its totient is φ = 510642606.

The previous prime is 1021285151. The next prime is 1021285247. The reversal of 1021285214 is 4125821201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4125821201 = 431 ⋅9572671.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255321302 + ... + 255321305.

It is an arithmetic number, because the mean of its divisors is an integer number (382981956).

Almost surely, 2^1021285214 is an apocalyptic number.

1021285214 is a deficient number, since it is larger than the sum of its proper divisors (510642610).

1021285214 is an equidigital number, since it uses as much as digits as its factorization.

1021285214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510642609.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 1021285214 is about 31957.5533168608. The cubic root of 1021285214 is about 1007.0453182557.

The spelling of 1021285214 in words is "one billion, twenty-one million, two hundred eighty-five thousand, two hundred fourteen".