1020002222002 has 16 divisors (see below), whose sum is σ = 1620168411960. Its totient is φ = 479952191488.

The previous prime is 1020002221991. The next prime is 1020002222033. The reversal of 1020002222002 is 2002222000201.

It can be written as a sum of positive squares in 4 ways, for example, as 987020393121 + 32981828881 = 993489^2 + 181609^2 .

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, 1186627 + ... + 1856902.

Almost surely, 2^{1020002222002} is an apocalyptic number.

1020002222002 is a deficient number, since it is larger than the sum of its proper divisors (600166189958).

1020002222002 is a wasteful number, since it uses less digits than its factorization.

1020002222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053405.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 1020002222002 its reverse (2002222000201), we get a palindrome (3022224222203).

The spelling of 1020002222002 in words is "one trillion, twenty billion, two million, two hundred twenty-two thousand, two".