1020021001222 has 32 divisors (see below), whose sum is σ = 1632688306560. Its totient is φ = 476274785280.

The previous prime is 1020021001213. The next prime is 1020021001231. The reversal of 1020021001222 is 2221001200201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1020021001213) and next prime (1020021001231).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2024322 + ... + 2477482.

It is an arithmetic number, because the mean of its divisors is an integer number (51021509580).

Almost surely, 2^{1020021001222} is an apocalyptic number.

1020021001222 is a deficient number, since it is larger than the sum of its proper divisors (612667305338).

1020021001222 is a wasteful number, since it uses less digits than its factorization.

1020021001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453696.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1020021001222 its reverse (2221001200201), we get a palindrome (3241022201423).

The spelling of 1020021001222 in words is "one trillion, twenty billion, twenty-one million, one thousand, two hundred twenty-two".