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10102021212021 = 3157176691213879
BaseRepresentation
bin1001001100000000111101…
…1000101100011101110101
31022202202002020010210201120
42103000033120230131311
52311002414412241041
633252445433414153
72061563334342234
oct223001730543565
938682066123646
1010102021212021
113245274684682
121171a0a56a359
1358380262b2bb
1426cd247aab1b
15127b9b830366
hex9300f62c775

10102021212021 has 16 divisors (see below), whose sum is σ = 13555932067200. Its totient is φ = 6691400509248.

The previous prime is 10102021212001. The next prime is 10102021212037. The reversal of 10102021212021 is 12021212020101.

It is not a de Polignac number, because 10102021212021 - 210 = 10102021210997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102021212001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7715160 + ... + 8929038.

It is an arithmetic number, because the mean of its divisors is an integer number (847245754200).

Almost surely, 210102021212021 is an apocalyptic number.

It is an amenable number.

10102021212021 is a deficient number, since it is larger than the sum of its proper divisors (3453910855179).

10102021212021 is a wasteful number, since it uses less digits than its factorization.

10102021212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231708.

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

Adding to 10102021212021 its reverse (12021212020101), we get a palindrome (22123233232122).

The spelling of 10102021212021 in words is "ten trillion, one hundred two billion, twenty-one million, two hundred twelve thousand, twenty-one".

Divisors: 1 3 157 471 17669 53007 1213879 2774033 3641637 8322099 190579003 571737009 21448028051 64344084153 3367340404007 10102021212021