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122213021002 = 261106510501
BaseRepresentation
bin111000111010001110…
…1101011010101001010
3102200110020100201121021
41301310131223111022
54000243013133002
6132051025103054
711554360352452
oct1616435532512
9380406321537
10122213021002
11479150785a6
121b828a87a8a
13b6a8827657
145cb5212d62
1532a43e5737
hex1c7476b54a

122213021002 has 4 divisors (see below), whose sum is σ = 183319531506. Its totient is φ = 61106510500.

The previous prime is 122213020991. The next prime is 122213021033. The reversal of 122213021002 is 200120312221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200120312221 = 346757721463.

It can be written as a sum of positive squares in only one way, i.e., 122206875561 + 6145441 = 349581^2 + 2479^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30553255249 + ... + 30553255252.

Almost surely, 2122213021002 is an apocalyptic number.

122213021002 is a deficient number, since it is larger than the sum of its proper divisors (61106510504).

122213021002 is an equidigital number, since it uses as much as digits as its factorization.

122213021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61106510503.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 122213021002 its reverse (200120312221), we get a palindrome (322333333223).

The spelling of 122213021002 in words is "one hundred twenty-two billion, two hundred thirteen million, twenty-one thousand, two".

Divisors: 1 2 61106510501 122213021002