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1212211012002 = 23557362720231
BaseRepresentation
bin10001101000111101011…
…010000010000110100010
311021212221001212210101020
4101220331122002012202
5124330102004341002
62324514304550310
7153402501410064
oct21507532020642
94255831783336
101212211012002
11428106572151
12176b27022396
138a407390bb3
1442958193734
15217ebc3d2bc
hex11a3d6821a2

1212211012002 has 16 divisors (see below), whose sum is σ = 2428774673472. Its totient is φ = 403344895760.

The previous prime is 1212211011997. The next prime is 1212211012013. The reversal of 1212211012002 is 2002101122121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181356774 + ... + 181363457.

It is an arithmetic number, because the mean of its divisors is an integer number (151798417092).

Almost surely, 21212211012002 is an apocalyptic number.

1212211012002 is an abundant number, since it is smaller than the sum of its proper divisors (1216563661470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212211012002 is a wasteful number, since it uses less digits than its factorization.

1212211012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362720793.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1212211012002 its reverse (2002101122121), we get a palindrome (3214312134123).

The spelling of 1212211012002 in words is "one trillion, two hundred twelve billion, two hundred eleven million, twelve thousand, two".

Divisors: 1 2 3 6 557 1114 1671 3342 362720231 725440462 1088160693 2176321386 202035168667 404070337334 606105506001 1212211012002