2002120022 has 64 divisors (see below), whose sum is σ = 3838855680. Its totient is φ = 762379776.
The previous prime is 2002120013. The next prime is 2002120051. The reversal of 2002120022 is 2200212002.
It is a junction number, because it is equal to n+sod(n) for n = 2002119985 and 2002120012.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1686113 + ... + 1687299.
It is an arithmetic number, because the mean of its divisors is an integer number (59982120).
Almost surely, 22002120022 is an apocalyptic number.
2002120022 is a deficient number, since it is larger than the sum of its proper divisors (1836735658).
2002120022 is a wasteful number, since it uses less digits than its factorization.
2002120022 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1605.
The product of its (nonzero) digits is 32, while the sum is 11.
The square root of 2002120022 is about 44745.0558386063. The cubic root of 2002120022 is about 1260.3660694140.
Adding to 2002120022 its reverse (2200212002), we get a palindrome (4202332024).
It can be divided in two parts, 200212002 and 2, that multiplied together give a palindrome (400424004).
The spelling of 2002120022 in words is "two billion, two million, one hundred twenty thousand, twenty-two".
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