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120201000002221 = 376633191487667
BaseRepresentation
bin11011010101001001111001…
…111010000010001010101101
3120202121002210100202002121011
4123111021321322002022231
5111223333122000032341
61103351324352305221
734214143556051425
oct3325117172021255
9522532710662534
10120201000002221
1135332a5995a926
1211593913842211
13520bba0987028
142197a8bc9d485
15dd6a857abb81
hex6d5279e822ad

120201000002221 has 4 divisors (see below), whose sum is σ = 120204191527552. Its totient is φ = 120197808476892.

The previous prime is 120201000002159. The next prime is 120201000002227. The reversal of 120201000002221 is 122200000102021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120201000002221 - 27 = 120201000002093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120201000002227) 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, 1595706171 + ... + 1595781496.

It is an arithmetic number, because the mean of its divisors is an integer number (30051047881888).

Almost surely, 2120201000002221 is an apocalyptic number.

It is an amenable number.

120201000002221 is a deficient number, since it is larger than the sum of its proper divisors (3191525331).

120201000002221 is an equidigital number, since it uses as much as digits as its factorization.

120201000002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3191525330.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 120201000002221 its reverse (122200000102021), we get a palindrome (242401000104242).

The spelling of 120201000002221 in words is "one hundred twenty trillion, two hundred one billion, two thousand, two hundred twenty-one".

Divisors: 1 37663 3191487667 120201000002221