1021214402 has 32 divisors (see below), whose sum is σ = 1710035712. Its totient is φ = 454379904.

The previous prime is 1021214401. The next prime is 1021214461. The reversal of 1021214402 is 2044121201.

It is not an unprimeable number, because it can be changed into a prime (1021214401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75638 + ... + 88110.

It is an arithmetic number, because the mean of its divisors is an integer number (53438616).

Almost surely, 2^1021214402 is an apocalyptic number.

1021214402 is a deficient number, since it is larger than the sum of its proper divisors (688821310).

1021214402 is a wasteful number, since it uses less digits than its factorization.

1021214402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12602.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1021214402 is about 31956.4453905624. The cubic root of 1021214402 is about 1007.0220428310.

Adding to 1021214402 its reverse (2044121201), we get a palindrome (3065335603).

The spelling of 1021214402 in words is "one billion, twenty-one million, two hundred fourteen thousand, four hundred two".