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70021020211201 = 242416128884641
BaseRepresentation
bin11111110101111000010100…
…00010010101100000000001
3100011220221111021212010201101
433322330022002111200001
533134211022133224301
6404531113531334401
720514565104336433
oct1772741202254001
9304827437763641
1070021020211201
11203468255129a4
127a2a661bb1401
13300bc528770b7
14134106d43a653
1581661a0d6701
hex3faf0a095801

70021020211201 has 4 divisors (see below), whose sum is σ = 70021051520004. Its totient is φ = 70020988902400.

The previous prime is 70021020211171. The next prime is 70021020211211. The reversal of 70021020211201 is 10211202012007.

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

It can be written as a sum of positive squares in 2 ways, for example, as 48720958401600 + 21300061809601 = 6980040^2 + 4615199^2 .

It is a cyclic number.

It is not a de Polignac number, because 70021020211201 - 227 = 70020885993473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70021020211211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12018160 + ... + 16866481.

It is an arithmetic number, because the mean of its divisors is an integer number (17505262880001).

Almost surely, 270021020211201 is an apocalyptic number.

It is an amenable number.

70021020211201 is a deficient number, since it is larger than the sum of its proper divisors (31308803).

70021020211201 is a wasteful number, since it uses less digits than its factorization.

70021020211201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31308802.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 70021020211201 its reverse (10211202012007), we get a palindrome (80232222223208).

The spelling of 70021020211201 in words is "seventy trillion, twenty-one billion, twenty million, two hundred eleven thousand, two hundred one".

Divisors: 1 2424161 28884641 70021020211201