1020012012202 has 4 divisors (see below), whose sum is σ = 1530018018306. Its totient is φ = 510006006100.

The previous prime is 1020012012181. The next prime is 1020012012223. The reversal of 1020012012202 is 2022102100201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1020012012181) and next prime (1020012012223).

It can be written as a sum of positive squares in only one way, i.e., 765381769321 + 254630242881 = 874861^2 + 504609^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255003003049 + ... + 255003003052.

Almost surely, 2^{1020012012202} is an apocalyptic number.

1020012012202 is a deficient number, since it is larger than the sum of its proper divisors (510006006104).

1020012012202 is an equidigital number, since it uses as much as digits as its factorization.

1020012012202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510006006103.

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

Adding to 1020012012202 its reverse (2022102100201), we get a palindrome (3042114112403).

The spelling of 1020012012202 in words is "one trillion, twenty billion, twelve million, twelve thousand, two hundred two".