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BaseRepresentation
bin10001011111101001111…
…010001001111110100011
311020221010210102120110101
4101133221322021332203
5124144121333242011
62320143051243231
7152600065123501
oct21375172117643
94227123376411
101202220212131
11423949a71354
12174bb9149517
13894a45751b3
144228b347671
1521414a9b2c1
hex117e9e89fa3

1202220212131 has 2 divisors, whose sum is σ = 1202220212132. Its totient is φ = 1202220212130.

The previous prime is 1202220212129. The next prime is 1202220212147. The reversal of 1202220212131 is 1312120222021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1202220212131 - 21 = 1202220212129 is a prime.

It is a super-2 number, since 2×12022202121312 (a number of 25 digits) contains 22 as substring.

Together with 1202220212129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1202220212099 and 1202220212108.

It is not a weakly prime, because it can be changed into another prime (1202220212111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601110106065 + 601110106066.

It is an arithmetic number, because the mean of its divisors is an integer number (601110106066).

Almost surely, 21202220212131 is an apocalyptic number.

1202220212131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202220212131 is an equidigital number, since it uses as much as digits as its factorization.

1202220212131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1202220212131 its reverse (1312120222021), we get a palindrome (2514340434152).

The spelling of 1202220212131 in words is "one trillion, two hundred two billion, two hundred twenty million, two hundred twelve thousand, one hundred thirty-one".