1021220002 has 16 divisors (see below), whose sum is σ = 1681736832. Its totient is φ = 461232720.

The previous prime is 1021219957. The next prime is 1021220021. The reversal of 1021220002 is 2000221201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144378 + ... + 151285.

It is an arithmetic number, because the mean of its divisors is an integer number (105108552).

Almost surely, 2^1021220002 is an apocalyptic number.

1021220002 is a deficient number, since it is larger than the sum of its proper divisors (660516830).

1021220002 is a wasteful number, since it uses less digits than its factorization.

1021220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295833.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1021220002 is about 31956.5330096993. The cubic root of 1021220002 is about 1007.0238835522.

Adding to 1021220002 its reverse (2000221201), we get a palindrome (3021441203).

The spelling of 1021220002 in words is "one billion, twenty-one million, two hundred twenty thousand, two".