20021012222002 has 16 divisors (see below), whose sum is σ = 32769377858592. Its totient is φ = 9098315241120.

The previous prime is 20021012221963. The next prime is 20021012222041. The reversal of 20021012222002 is 20022221012002.

It is an interprime number because it is at equal distance from previous prime (20021012221963) and next prime (20021012222041).

It is a super-2 number, since 2×20021012222002² (a number of 27 digits) contains 22 as substring.

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, 107147523 + ... + 107334214.

It is an arithmetic number, because the mean of its divisors is an integer number (2048086116162).

Almost surely, 2^{20021012222002} is an apocalyptic number.

20021012222002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20021012222002 is a deficient number, since it is larger than the sum of its proper divisors (12748365636590).

20021012222002 is a wasteful number, since it uses less digits than its factorization.

20021012222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214485993.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20021012222002 its reverse (20022221012002), we get a palindrome (40043233234004).

The spelling of 20021012222002 in words is "twenty trillion, twenty-one billion, twelve million, two hundred twenty-two thousand, two".